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Finding the Fourth Proportional to 8,864.82, 13,293.80 and 2,939.90

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Solution

The fourth proportional to 8,864.82, 13,293.80 and 2,939.90 is: 4,408.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,864.82 : 13,293.80 = 2,939.90 : x
  2. Step 2: Convert to fraction form
    8,864.82/13,293.80 = 2,939.90/x
  3. Step 3: Cross multiply
    8,864.82x = 13,293.80 × 2,939.90
  4. Step 4: Simplify right side
    8,864.82x = 39,082,442.62
  5. Step 5: Solve for x
    x = 39,082,442.62/8,864.82
  6. Step 6: Final answer
    x = 4,408.71

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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.