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Finding the Fourth Proportional to 1,658.29, 2,487.02 and 488.06

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Solution

The fourth proportional to 1,658.29, 2,487.02 and 488.06 is: 731.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,658.29 : 2,487.02 = 488.06 : x
  2. Step 2: Convert to fraction form
    1,658.29/2,487.02 = 488.06/x
  3. Step 3: Cross multiply
    1,658.29x = 2,487.02 × 488.06
  4. Step 4: Simplify right side
    1,658.29x = 1,213,807.54
  5. Step 5: Solve for x
    x = 1,213,807.54/1,658.29
  6. Step 6: Final answer
    x = 731.96

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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.