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Finding the Fourth Proportional to 5,545.44, 8,318.16 and 4,392

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Solution

The fourth proportional to 5,545.44, 8,318.16 and 4,392 is: 6,588

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,545.44 : 8,318.16 = 4,392 : x
  2. Step 2: Convert to fraction form
    5,545.44/8,318.16 = 4,392/x
  3. Step 3: Cross multiply
    5,545.44x = 8,318.16 × 4,392
  4. Step 4: Simplify right side
    5,545.44x = 36,533,358.72
  5. Step 5: Solve for x
    x = 36,533,358.72/5,545.44
  6. Step 6: Final answer
    x = 6,588

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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.