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Finding the Fourth Proportional to 3,937.94, 5,908.11 and 1,859.54

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Solution

The fourth proportional to 3,937.94, 5,908.11 and 1,859.54 is: 2,789.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,937.94 : 5,908.11 = 1,859.54 : x
  2. Step 2: Convert to fraction form
    3,937.94/5,908.11 = 1,859.54/x
  3. Step 3: Cross multiply
    3,937.94x = 5,908.11 × 1,859.54
  4. Step 4: Simplify right side
    3,937.94x = 10,986,366.87
  5. Step 5: Solve for x
    x = 10,986,366.87/3,937.94
  6. Step 6: Final answer
    x = 2,789.88

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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.