Home / 2,481.29-3,423.15-1,642.40

Finding the Fourth Proportional to 2,481.29, 3,423.15 and 1,642.40

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Solution

The fourth proportional to 2,481.29, 3,423.15 and 1,642.40 is: 2,265.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,481.29 : 3,423.15 = 1,642.40 : x
  2. Step 2: Convert to fraction form
    2,481.29/3,423.15 = 1,642.40/x
  3. Step 3: Cross multiply
    2,481.29x = 3,423.15 × 1,642.40
  4. Step 4: Simplify right side
    2,481.29x = 5,622,181.56
  5. Step 5: Solve for x
    x = 5,622,181.56/2,481.29
  6. Step 6: Final answer
    x = 2,265.83

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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.