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Finding the Fourth Proportional to 3,877.04, 5,807.46 and 2,891.28

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Solution

The fourth proportional to 3,877.04, 5,807.46 and 2,891.28 is: 4,330.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,877.04 : 5,807.46 = 2,891.28 : x
  2. Step 2: Convert to fraction form
    3,877.04/5,807.46 = 2,891.28/x
  3. Step 3: Cross multiply
    3,877.04x = 5,807.46 × 2,891.28
  4. Step 4: Simplify right side
    3,877.04x = 16,790,992.95
  5. Step 5: Solve for x
    x = 16,790,992.95/3,877.04
  6. Step 6: Final answer
    x = 4,330.88

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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.