Home / 2,321.10-3,489.17-1,863.88

Finding the Fourth Proportional to 2,321.10, 3,489.17 and 1,863.88

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Solution

The fourth proportional to 2,321.10, 3,489.17 and 1,863.88 is: 2,801.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,321.10 : 3,489.17 = 1,863.88 : x
  2. Step 2: Convert to fraction form
    2,321.10/3,489.17 = 1,863.88/x
  3. Step 3: Cross multiply
    2,321.10x = 3,489.17 × 1,863.88
  4. Step 4: Simplify right side
    2,321.10x = 6,503,398.84
  5. Step 5: Solve for x
    x = 6,503,398.84/2,321.10
  6. Step 6: Final answer
    x = 2,801.87

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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.