Okay, so proportions are essentially ratios. Let's say you have a 2-inch by 5-inch square. If you were to want a larger square, multiply both numbers. Say you want a 10-inch by 25-inch square, you take both 2 and 5 (2:5) and multiply it by 5 (10:25 is your new ratio). Make sense? If you wanted a smaller square, you take 2:5 and divide it. We'll divide it by 2, which makes the ratio 1:2.5 (it may not always be a whole number). Does this make sense?
