Home / 5,139.23-7,092.92-3,729.32

Finding the Fourth Proportional to 5,139.23, 7,092.92 and 3,729.32

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Solution

The fourth proportional to 5,139.23, 7,092.92 and 3,729.32 is: 5,147.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,139.23 : 7,092.92 = 3,729.32 : x
  2. Step 2: Convert to fraction form
    5,139.23/7,092.92 = 3,729.32/x
  3. Step 3: Cross multiply
    5,139.23x = 7,092.92 × 3,729.32
  4. Step 4: Simplify right side
    5,139.23x = 26,451,714.30
  5. Step 5: Solve for x
    x = 26,451,714.30/5,139.23
  6. Step 6: Final answer
    x = 5,147.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.