Home / 6,439.91-8,882.19-5,545.18

Finding the Fourth Proportional to 6,439.91, 8,882.19 and 5,545.18

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Solution

The fourth proportional to 6,439.91, 8,882.19 and 5,545.18 is: 7,648.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,439.91 : 8,882.19 = 5,545.18 : x
  2. Step 2: Convert to fraction form
    6,439.91/8,882.19 = 5,545.18/x
  3. Step 3: Cross multiply
    6,439.91x = 8,882.19 × 5,545.18
  4. Step 4: Simplify right side
    6,439.91x = 49,253,320.14
  5. Step 5: Solve for x
    x = 49,253,320.14/6,439.91
  6. Step 6: Final answer
    x = 7,648.14

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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.