Home / 3,963.29-5,469.29-2,170.75

Finding the Fourth Proportional to 3,963.29, 5,469.29 and 2,170.75

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Solution

The fourth proportional to 3,963.29, 5,469.29 and 2,170.75 is: 2,995.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,963.29 : 5,469.29 = 2,170.75 : x
  2. Step 2: Convert to fraction form
    3,963.29/5,469.29 = 2,170.75/x
  3. Step 3: Cross multiply
    3,963.29x = 5,469.29 × 2,170.75
  4. Step 4: Simplify right side
    3,963.29x = 11,872,436.74
  5. Step 5: Solve for x
    x = 11,872,436.74/3,963.29
  6. Step 6: Final answer
    x = 2,995.61

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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.