Home / 3,939.62-5,432.15-2,943.23

Finding the Fourth Proportional to 3,939.62, 5,432.15 and 2,943.23

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Solution

The fourth proportional to 3,939.62, 5,432.15 and 2,943.23 is: 4,058.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,939.62 : 5,432.15 = 2,943.23 : x
  2. Step 2: Convert to fraction form
    3,939.62/5,432.15 = 2,943.23/x
  3. Step 3: Cross multiply
    3,939.62x = 5,432.15 × 2,943.23
  4. Step 4: Simplify right side
    3,939.62x = 15,988,052.13
  5. Step 5: Solve for x
    x = 15,988,052.13/3,939.62
  6. Step 6: Final answer
    x = 4,058.27

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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.