Home / 4-5.38

Finding the Third Proportional to 4 and 5.38

Calculator

Solution

The third proportional to 4 and 5.38 is: 7.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4 : 5.38 = 5.38 : x
  2. Step 2: Convert to fraction form
    4/5.38 = 5.38/x
  3. Step 3: Cross multiply
    4x = 5.38 × 5.38
  4. Step 4: Simplify right side
    4x = 28.89
  5. Step 5: Solve for x
    x = 28.89/4
  6. Step 6: Final answer
    x = 7.22

Related Problems

Find third proportional to 2 and 2.69
Half scale
Find third proportional to 8 and 10.75
Double scale
Find third proportional to 6 and 8
Similar ratio
Find third proportional to 6 and 8.06
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.