Home / 5,129.87-7,691.72-2,006.15

Finding the Fourth Proportional to 5,129.87, 7,691.72 and 2,006.15

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Solution

The fourth proportional to 5,129.87, 7,691.72 and 2,006.15 is: 3,008.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,129.87 : 7,691.72 = 2,006.15 : x
  2. Step 2: Convert to fraction form
    5,129.87/7,691.72 = 2,006.15/x
  3. Step 3: Cross multiply
    5,129.87x = 7,691.72 × 2,006.15
  4. Step 4: Simplify right side
    5,129.87x = 15,430,695.59
  5. Step 5: Solve for x
    x = 15,430,695.59/5,129.87
  6. Step 6: Final answer
    x = 3,008.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.