Home / 3,936.73-5,432.68-2,168.31

Finding the Fourth Proportional to 3,936.73, 5,432.68 and 2,168.31

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Solution

The fourth proportional to 3,936.73, 5,432.68 and 2,168.31 is: 2,992.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,936.73 : 5,432.68 = 2,168.31 : x
  2. Step 2: Convert to fraction form
    3,936.73/5,432.68 = 2,168.31/x
  3. Step 3: Cross multiply
    3,936.73x = 5,432.68 × 2,168.31
  4. Step 4: Simplify right side
    3,936.73x = 11,779,747.95
  5. Step 5: Solve for x
    x = 11,779,747.95/3,936.73
  6. Step 6: Final answer
    x = 2,992.27

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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.