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Finding the Fourth Proportional to 3,838.56, 5,760.07 and 1,617.24

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Solution

The fourth proportional to 3,838.56, 5,760.07 and 1,617.24 is: 2,426.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,838.56 : 5,760.07 = 1,617.24 : x
  2. Step 2: Convert to fraction form
    3,838.56/5,760.07 = 1,617.24/x
  3. Step 3: Cross multiply
    3,838.56x = 5,760.07 × 1,617.24
  4. Step 4: Simplify right side
    3,838.56x = 9,315,418.10
  5. Step 5: Solve for x
    x = 9,315,418.10/3,838.56
  6. Step 6: Final answer
    x = 2,426.80

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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.