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Finding the Fourth Proportional to 3,812.88, 5,717.97 and 1,731.14

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Solution

The fourth proportional to 3,812.88, 5,717.97 and 1,731.14 is: 2,596.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,812.88 : 5,717.97 = 1,731.14 : x
  2. Step 2: Convert to fraction form
    3,812.88/5,717.97 = 1,731.14/x
  3. Step 3: Cross multiply
    3,812.88x = 5,717.97 × 1,731.14
  4. Step 4: Simplify right side
    3,812.88x = 9,898,606.59
  5. Step 5: Solve for x
    x = 9,898,606.59/3,812.88
  6. Step 6: Final answer
    x = 2,596.10

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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.