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Finding the Fourth Proportional to 2,875.97, 4,310.88 and 1,487.91

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Solution

The fourth proportional to 2,875.97, 4,310.88 and 1,487.91 is: 2,230.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,875.97 : 4,310.88 = 1,487.91 : x
  2. Step 2: Convert to fraction form
    2,875.97/4,310.88 = 1,487.91/x
  3. Step 3: Cross multiply
    2,875.97x = 4,310.88 × 1,487.91
  4. Step 4: Simplify right side
    2,875.97x = 6,414,172.47
  5. Step 5: Solve for x
    x = 6,414,172.47/2,875.97
  6. Step 6: Final answer
    x = 2,230.27

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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.