If a roast is 4.74 pounds & you have to 90 minutes per pound how long should you cook it for?
If a roast is 4.74 pounds and you have to cook it for 90 minutes per pound then you should cook it for approximately 7hours. This ensures that the roast gets cooked inside and out.
Are you using a slow cooker?
NINETY minutes a pound???? Are you kidding me???? There won't be anything edible when you're done.