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Finding the Fourth Proportional to 4,864, 6,711.24 and 2,874.64

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Solution

The fourth proportional to 4,864, 6,711.24 and 2,874.64 is: 3,966.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,864 : 6,711.24 = 2,874.64 : x
  2. Step 2: Convert to fraction form
    4,864/6,711.24 = 2,874.64/x
  3. Step 3: Cross multiply
    4,864x = 6,711.24 × 2,874.64
  4. Step 4: Simplify right side
    4,864x = 19,292,398.95
  5. Step 5: Solve for x
    x = 19,292,398.95/4,864
  6. Step 6: Final answer
    x = 3,966.36

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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.