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Finding the Fourth Proportional to 5,382.52, 8,076.98 and 2,917.32

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Solution

The fourth proportional to 5,382.52, 8,076.98 and 2,917.32 is: 4,377.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,382.52 : 8,076.98 = 2,917.32 : x
  2. Step 2: Convert to fraction form
    5,382.52/8,076.98 = 2,917.32/x
  3. Step 3: Cross multiply
    5,382.52x = 8,076.98 × 2,917.32
  4. Step 4: Simplify right side
    5,382.52x = 23,563,135.29
  5. Step 5: Solve for x
    x = 23,563,135.29/5,382.52
  6. Step 6: Final answer
    x = 4,377.71

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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.