Home / 3,839.96-5,765.28-1,992.44

Finding the Fourth Proportional to 3,839.96, 5,765.28 and 1,992.44

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Solution

The fourth proportional to 3,839.96, 5,765.28 and 1,992.44 is: 2,991.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,839.96 : 5,765.28 = 1,992.44 : x
  2. Step 2: Convert to fraction form
    3,839.96/5,765.28 = 1,992.44/x
  3. Step 3: Cross multiply
    3,839.96x = 5,765.28 × 1,992.44
  4. Step 4: Simplify right side
    3,839.96x = 11,486,974.48
  5. Step 5: Solve for x
    x = 11,486,974.48/3,839.96
  6. Step 6: Final answer
    x = 2,991.43

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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.