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Finding the Fourth Proportional to 3,838.92, 5,757.16 and 1,241.24

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Solution

The fourth proportional to 3,838.92, 5,757.16 and 1,241.24 is: 1,861.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,838.92 : 5,757.16 = 1,241.24 : x
  2. Step 2: Convert to fraction form
    3,838.92/5,757.16 = 1,241.24/x
  3. Step 3: Cross multiply
    3,838.92x = 5,757.16 × 1,241.24
  4. Step 4: Simplify right side
    3,838.92x = 7,146,017.28
  5. Step 5: Solve for x
    x = 7,146,017.28/3,838.92
  6. Step 6: Final answer
    x = 1,861.47

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1.5x scale

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.