Home / 3,892.89-5,372.28-2,124.66

Finding the Fourth Proportional to 3,892.89, 5,372.28 and 2,124.66

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Solution

The fourth proportional to 3,892.89, 5,372.28 and 2,124.66 is: 2,932.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,892.89 : 5,372.28 = 2,124.66 : x
  2. Step 2: Convert to fraction form
    3,892.89/5,372.28 = 2,124.66/x
  3. Step 3: Cross multiply
    3,892.89x = 5,372.28 × 2,124.66
  4. Step 4: Simplify right side
    3,892.89x = 11,414,268.42
  5. Step 5: Solve for x
    x = 11,414,268.42/3,892.89
  6. Step 6: Final answer
    x = 2,932.08

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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.