Home / 3,917-7,930

Finding the Third Proportional to 3,917 and 7,930

Calculator

Solution

The third proportional to 3,917 and 7,930 is: 16,054.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,917 : 7,930 = 7,930 : x
  2. Step 2: Convert to fraction form
    3,917/7,930 = 7,930/x
  3. Step 3: Cross multiply
    3,917x = 7,930 × 7,930
  4. Step 4: Simplify right side
    3,917x = 62,884,900
  5. Step 5: Solve for x
    x = 62,884,900/3,917
  6. Step 6: Final answer
    x = 16,054.35

Related Problems

Find third proportional to 1,958.50 and 3,965
Half scale
Find third proportional to 7,834 and 15,860
Double scale
Find third proportional to 3,919 and 7,934
Similar ratio
Find third proportional to 5,875.50 and 11,895
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.02) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.