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Finding the Fourth Proportional to 2,167.72, 3,251.57 and 524.27

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Solution

The fourth proportional to 2,167.72, 3,251.57 and 524.27 is: 786.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,167.72 : 3,251.57 = 524.27 : x
  2. Step 2: Convert to fraction form
    2,167.72/3,251.57 = 524.27/x
  3. Step 3: Cross multiply
    2,167.72x = 3,251.57 × 524.27
  4. Step 4: Simplify right side
    2,167.72x = 1,704,706.11
  5. Step 5: Solve for x
    x = 1,704,706.11/2,167.72
  6. Step 6: Final answer
    x = 786.41

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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.