Home / 5,138.91-7,707.15-2,363.85

Finding the Fourth Proportional to 5,138.91, 7,707.15 and 2,363.85

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Solution

The fourth proportional to 5,138.91, 7,707.15 and 2,363.85 is: 3,545.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,138.91 : 7,707.15 = 2,363.85 : x
  2. Step 2: Convert to fraction form
    5,138.91/7,707.15 = 2,363.85/x
  3. Step 3: Cross multiply
    5,138.91x = 7,707.15 × 2,363.85
  4. Step 4: Simplify right side
    5,138.91x = 18,218,546.53
  5. Step 5: Solve for x
    x = 18,218,546.53/5,138.91
  6. Step 6: Final answer
    x = 3,545.22

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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.