Home / 3,803.90-5,249.28-2,125.31

Finding the Fourth Proportional to 3,803.90, 5,249.28 and 2,125.31

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Solution

The fourth proportional to 3,803.90, 5,249.28 and 2,125.31 is: 2,932.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,803.90 : 5,249.28 = 2,125.31 : x
  2. Step 2: Convert to fraction form
    3,803.90/5,249.28 = 2,125.31/x
  3. Step 3: Cross multiply
    3,803.90x = 5,249.28 × 2,125.31
  4. Step 4: Simplify right side
    3,803.90x = 11,156,363.95
  5. Step 5: Solve for x
    x = 11,156,363.95/3,803.90
  6. Step 6: Final answer
    x = 2,932.88

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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.