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Finding the Fourth Proportional to 3,812.73, 5,715.63 and 1,731.62

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Solution

The fourth proportional to 3,812.73, 5,715.63 and 1,731.62 is: 2,595.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,812.73 : 5,715.63 = 1,731.62 : x
  2. Step 2: Convert to fraction form
    3,812.73/5,715.63 = 1,731.62/x
  3. Step 3: Cross multiply
    3,812.73x = 5,715.63 × 1,731.62
  4. Step 4: Simplify right side
    3,812.73x = 9,897,270.64
  5. Step 5: Solve for x
    x = 9,897,270.64/3,812.73
  6. Step 6: Final answer
    x = 2,595.85

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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.