# How to Calculate Proportions?

To calculate proportions, you need to have two or more quantities to compare to each other. The number will be compared using 'to'. The number being divided goes first. For example, lets say you have 10 dogs and 5 cats. The proportion of dogs 'to' cats is 10 to 5 or 2 to 1.
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A proportion occurs when two ratios are forced to be equal to each other. This selection will allow you to find a second ratio that is in the same proportion as the first... More>>
Q&A Related to "How to Calculate Proportions?"
 1. Define the problem. In order to compute a proportion, the two quantities being compared must be known. For simplicity, let them be called A and B. 2. Determine which quantity is http://www.ehow.com/how_2310782_calculate-proporti...
 1. Find the values for A and B in a geometric triangle. A and B refer to the side of the polygon that is opposite the angle from which you are calculating the proportional mean. If http://www.ehow.com/how_8783989_calculate-mean-pro...
 1. Define the quantities and their relationship. For example, if you want to know the proportionality of fuel consumption by an automobile, you have to determine how many miles the http://www.ehow.com/how_6076375_calculate-proporti...
 1. Identify the amounts that are being compared. If comparing apples to oranges, then the amount of apples and the amount of oranges must be known. Express each as a number. For example http://www.ehow.com/how_2310756_calculate-ratios-p...
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