Question

The fourth proportion to 3,4,5 is​

Answer 1

Answer:

let the fourth proportional to be x

3:4::5:x

we know that product of meanes=product of extremes

3x=20

x=20/3=6.67

Answer 2

Solution :-

Let us assume that, the fourth proportion to 3,4,5 is x .

So,

→ 3 : 4 :: 5 : x

then,

→ Product of means = Product of extremes

→ 4 * 5 = 3 * x

→ 20 = 3x

dividing both sides by 3,

→ x = (20/3) (Ans.)

Hence, the fourth proportion to 3,4,5 is (20/3) .

Learn more :-

find 3 1/5 ÷ 1 2/3 step by step explanation

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