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Finding the Fourth Proportional to 5,463.38, 7,539.47 and 2,979.38

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Solution

The fourth proportional to 5,463.38, 7,539.47 and 2,979.38 is: 4,111.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,463.38 : 7,539.47 = 2,979.38 : x
  2. Step 2: Convert to fraction form
    5,463.38/7,539.47 = 2,979.38/x
  3. Step 3: Cross multiply
    5,463.38x = 7,539.47 × 2,979.38
  4. Step 4: Simplify right side
    5,463.38x = 22,462,893.53
  5. Step 5: Solve for x
    x = 22,462,893.53/5,463.38
  6. Step 6: Final answer
    x = 4,111.54

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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.