Question

meon of three number is 25 The mean
of other four number is 48. Find the mean
of the number​

Answer 1

LOGIN

JOIN NOW

Search for a topic

Quantitative Aptitude > Ratios and Proportions > Proportionals (Third, Fourth and Mean)

Ratios and Proportions

Proportionals (Third, Fourth and Mean)

In the proportion, we saw how we can use the ratio of various quantities to analyze and compute the quantities themselves. Another very important concept that arises from the concept of proportion is the definition of proportional. In the following section, we shall define what we call a proportional and also solve many interesting examples of this concept. We will also define what we mean by the fourth proportional, the third proportional and the mean proportionals. Let us begin!

Suggested Videos

ArrowArrow

ArrowArrow

Area of Triangles

Coin Toss

VST Permutations and Combinations Problem 1 and its Solution

Solve

Questions

Proportionals (Third, Fourth and Mean)

Let us start by defining what we mean by the proportion. The equality of any two ratios is called a proportion. For example, if we have any four numbers or quantities that we represent as ‘a’, ‘b’, ‘c’, and ‘d’ respectively, then we may write the proportion of these four quantities as:

Proportionals

a:b = c:d or a:b :: c:d. From this, we will now define the proportionals. Let us