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Finding the Fourth Proportional to 4,388.79, 6,581.03 and 3,658.71

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Solution

The fourth proportional to 4,388.79, 6,581.03 and 3,658.71 is: 5,486.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,388.79 : 6,581.03 = 3,658.71 : x
  2. Step 2: Convert to fraction form
    4,388.79/6,581.03 = 3,658.71/x
  3. Step 3: Cross multiply
    4,388.79x = 6,581.03 × 3,658.71
  4. Step 4: Simplify right side
    4,388.79x = 24,078,061.98
  5. Step 5: Solve for x
    x = 24,078,061.98/4,388.79
  6. Step 6: Final answer
    x = 5,486.26

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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.