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Finding the Fourth Proportional to 4,491.72, 6,731.10 and 2,539.89

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Solution

The fourth proportional to 4,491.72, 6,731.10 and 2,539.89 is: 3,806.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,491.72 : 6,731.10 = 2,539.89 : x
  2. Step 2: Convert to fraction form
    4,491.72/6,731.10 = 2,539.89/x
  3. Step 3: Cross multiply
    4,491.72x = 6,731.10 × 2,539.89
  4. Step 4: Simplify right side
    4,491.72x = 17,096,253.58
  5. Step 5: Solve for x
    x = 17,096,253.58/4,491.72
  6. Step 6: Final answer
    x = 3,806.17

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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.