Home / 3,882.21-5,821.95-1,249.61

Finding the Fourth Proportional to 3,882.21, 5,821.95 and 1,249.61

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Solution

The fourth proportional to 3,882.21, 5,821.95 and 1,249.61 is: 1,873.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,882.21 : 5,821.95 = 1,249.61 : x
  2. Step 2: Convert to fraction form
    3,882.21/5,821.95 = 1,249.61/x
  3. Step 3: Cross multiply
    3,882.21x = 5,821.95 × 1,249.61
  4. Step 4: Simplify right side
    3,882.21x = 7,275,131.58
  5. Step 5: Solve for x
    x = 7,275,131.58/3,882.21
  6. Step 6: Final answer
    x = 1,873.97

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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.