Mary reduced the size of a painting to a width of 3.3in. What is the new height if it was originally 58.8in. tall and 39.6in. wide? Round to the nearest tenth.

4.9 inches

Explanation:
39.6 / 3.3 = 12 That means that the painting’s width was reduced to 12 times less than the original size. Now we need to apply that to the length.

58.8 / 12 = 4.9

The new height is 4.9 inches.

Optional:
If you want to check, compare the ratios of width/length in the original and new. If done correctly, both ratios should be equal when plugged into a calculator.

39.6/58.8 and 3.3/4.9
Both equal 0.67 so we can be sure that the answers are done correctly.