Question

what will be fourth proportion of 3.50,4.20 and2.50???​

Answer 1

Answer:

Let the fourth proportional to the numbers 3.50,4.20 and 2.50 be x. Then from the definition of the fourth proportional, we must have:

3.50: 4.20 :: 2.50: x or in terms of the fractions we can write;

3.50x = 4.20× 2.50. In other words, we have x = {4.20× 2.50}/3.50 = 3. The Answer