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Finding the Fourth Proportional to 8,861.82, 13,289.29 and 2,936.89

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Solution

The fourth proportional to 8,861.82, 13,289.29 and 2,936.89 is: 4,404.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,861.82 : 13,289.29 = 2,936.89 : x
  2. Step 2: Convert to fraction form
    8,861.82/13,289.29 = 2,936.89/x
  3. Step 3: Cross multiply
    8,861.82x = 13,289.29 × 2,936.89
  4. Step 4: Simplify right side
    8,861.82x = 39,029,182.91
  5. Step 5: Solve for x
    x = 39,029,182.91/8,861.82
  6. Step 6: Final answer
    x = 4,404.19

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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.