Home / 3,418.03-5,122.23-2,721.61

Finding the Fourth Proportional to 3,418.03, 5,122.23 and 2,721.61

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Solution

The fourth proportional to 3,418.03, 5,122.23 and 2,721.61 is: 4,078.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,418.03 : 5,122.23 = 2,721.61 : x
  2. Step 2: Convert to fraction form
    3,418.03/5,122.23 = 2,721.61/x
  3. Step 3: Cross multiply
    3,418.03x = 5,122.23 × 2,721.61
  4. Step 4: Simplify right side
    3,418.03x = 13,940,712.39
  5. Step 5: Solve for x
    x = 13,940,712.39/3,418.03
  6. Step 6: Final answer
    x = 4,078.58

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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.