Question

4. Find the fourth proportional to
(i)1/3,1/4,1/5
​

Answer 1

let the fourth proportional be x

1/3 : 1/4:: 1/5 : x

1/3 × x = 1/4 × 1/5

x/3 = 1/20

x = 1/20 × 3

x = 3/ 20

the fourth proportional = 3/20

Step-by-step explanation:

@Genius