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Finding the Fourth Proportional to 5,103, 7,654.44 and 2,642.64

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Solution

The fourth proportional to 5,103, 7,654.44 and 2,642.64 is: 3,963.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,103 : 7,654.44 = 2,642.64 : x
  2. Step 2: Convert to fraction form
    5,103/7,654.44 = 2,642.64/x
  3. Step 3: Cross multiply
    5,103x = 7,654.44 × 2,642.64
  4. Step 4: Simplify right side
    5,103x = 20,227,929.32
  5. Step 5: Solve for x
    x = 20,227,929.32/5,103
  6. Step 6: Final answer
    x = 3,963.93

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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.