Home / 3,963.78-5,470.02-2,568.96

Finding the Fourth Proportional to 3,963.78, 5,470.02 and 2,568.96

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Solution

The fourth proportional to 3,963.78, 5,470.02 and 2,568.96 is: 3,545.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,963.78 : 5,470.02 = 2,568.96 : x
  2. Step 2: Convert to fraction form
    3,963.78/5,470.02 = 2,568.96/x
  3. Step 3: Cross multiply
    3,963.78x = 5,470.02 × 2,568.96
  4. Step 4: Simplify right side
    3,963.78x = 14,052,262.58
  5. Step 5: Solve for x
    x = 14,052,262.58/3,963.78
  6. Step 6: Final answer
    x = 3,545.17

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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.