Home / 938-1,145

Finding the Third Proportional to 938 and 1,145

Calculator

Solution

The third proportional to 938 and 1,145 is: 1,397.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    938 : 1,145 = 1,145 : x
  2. Step 2: Convert to fraction form
    938/1,145 = 1,145/x
  3. Step 3: Cross multiply
    938x = 1,145 × 1,145
  4. Step 4: Simplify right side
    938x = 1,311,025
  5. Step 5: Solve for x
    x = 1,311,025/938
  6. Step 6: Final answer
    x = 1,397.68

Related Problems

Find third proportional to 469 and 572.50
Half scale
Find third proportional to 1,876 and 2,290
Double scale
Find third proportional to 940 and 1,147
Similar ratio
Find third proportional to 1,407 and 1,717.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.