Verified answer

пропорция это a/b = c/d где a b c d - числа

2 * 4.8 = 1.8 * 16/3 = 9.6

итак

2 / (16/3) = 1.8 / 4.8

2/ 1.8 = (16/3) / 4.8

4.8 / 1.8 = (16/3) / 2

1.8 / 2 = 4.8 / (16/3)