Sagot :
It's a partitive proportion.
3 + 4 = 7
Divide 7 to 91 which is equal to 13.
13 × 3 = 39
13 × 4 = 52
Check:
39 + 52 = 91
39 × 4 = 156
52 × 3 = 156
So the answer is correct.
3 : 4 = 39 : 52
3 + 4 = 7
Divide 7 to 91 which is equal to 13.
13 × 3 = 39
13 × 4 = 52
Check:
39 + 52 = 91
39 × 4 = 156
52 × 3 = 156
So the answer is correct.
3 : 4 = 39 : 52