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Finding the Fourth Proportional to 3,937.71, 5,439.23 and 2,941.26

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Solution

The fourth proportional to 3,937.71, 5,439.23 and 2,941.26 is: 4,062.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,937.71 : 5,439.23 = 2,941.26 : x
  2. Step 2: Convert to fraction form
    3,937.71/5,439.23 = 2,941.26/x
  3. Step 3: Cross multiply
    3,937.71x = 5,439.23 × 2,941.26
  4. Step 4: Simplify right side
    3,937.71x = 15,998,147.73
  5. Step 5: Solve for x
    x = 15,998,147.73/3,937.71
  6. Step 6: Final answer
    x = 4,062.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.