Home / 5,306.62-7,961.52-2,142.43

Finding the Fourth Proportional to 5,306.62, 7,961.52 and 2,142.43

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Solution

The fourth proportional to 5,306.62, 7,961.52 and 2,142.43 is: 3,214.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,306.62 : 7,961.52 = 2,142.43 : x
  2. Step 2: Convert to fraction form
    5,306.62/7,961.52 = 2,142.43/x
  3. Step 3: Cross multiply
    5,306.62x = 7,961.52 × 2,142.43
  4. Step 4: Simplify right side
    5,306.62x = 17,056,999.29
  5. Step 5: Solve for x
    x = 17,056,999.29/5,306.62
  6. Step 6: Final answer
    x = 3,214.29

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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.