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Finding the Fourth Proportional to 5,244.80, 7,867.52 and 1,956.78

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Solution

The fourth proportional to 5,244.80, 7,867.52 and 1,956.78 is: 2,935.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,244.80 : 7,867.52 = 1,956.78 : x
  2. Step 2: Convert to fraction form
    5,244.80/7,867.52 = 1,956.78/x
  3. Step 3: Cross multiply
    5,244.80x = 7,867.52 × 1,956.78
  4. Step 4: Simplify right side
    5,244.80x = 15,394,996.00
  5. Step 5: Solve for x
    x = 15,394,996.00/5,244.80
  6. Step 6: Final answer
    x = 2,935.29

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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.