Home / 5,251.06-7,876.32-1,963.90

Finding the Fourth Proportional to 5,251.06, 7,876.32 and 1,963.90

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Solution

The fourth proportional to 5,251.06, 7,876.32 and 1,963.90 is: 2,945.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,251.06 : 7,876.32 = 1,963.90 : x
  2. Step 2: Convert to fraction form
    5,251.06/7,876.32 = 1,963.90/x
  3. Step 3: Cross multiply
    5,251.06x = 7,876.32 × 1,963.90
  4. Step 4: Simplify right side
    5,251.06x = 15,468,304.85
  5. Step 5: Solve for x
    x = 15,468,304.85/5,251.06
  6. Step 6: Final answer
    x = 2,945.75

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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.