Home / 552.75-861.75

Finding the Third Proportional to 552.75 and 861.75

Calculator

Solution

The third proportional to 552.75 and 861.75 is: 1,343.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    552.75 : 861.75 = 861.75 : x
  2. Step 2: Convert to fraction form
    552.75/861.75 = 861.75/x
  3. Step 3: Cross multiply
    552.75x = 861.75 × 861.75
  4. Step 4: Simplify right side
    552.75x = 742,613.06
  5. Step 5: Solve for x
    x = 742,613.06/552.75
  6. Step 6: Final answer
    x = 1,343.49

Related Problems

Find third proportional to 276.38 and 430.88
Half scale
Find third proportional to 1,105.50 and 1,723.50
Double scale
Find third proportional to 555 and 865
Similar ratio
Find third proportional to 829.13 and 1,292.63
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.