Home / 2,638.13-3,951.39-2,282.54

Finding the Fourth Proportional to 2,638.13, 3,951.39 and 2,282.54

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Solution

The fourth proportional to 2,638.13, 3,951.39 and 2,282.54 is: 3,418.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,638.13 : 3,951.39 = 2,282.54 : x
  2. Step 2: Convert to fraction form
    2,638.13/3,951.39 = 2,282.54/x
  3. Step 3: Cross multiply
    2,638.13x = 3,951.39 × 2,282.54
  4. Step 4: Simplify right side
    2,638.13x = 9,019,205.73
  5. Step 5: Solve for x
    x = 9,019,205.73/2,638.13
  6. Step 6: Final answer
    x = 3,418.79

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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.