Home / 3,398.62-4,691.09-2,219.87

Finding the Fourth Proportional to 3,398.62, 4,691.09 and 2,219.87

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Solution

The fourth proportional to 3,398.62, 4,691.09 and 2,219.87 is: 3,064.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,398.62 : 4,691.09 = 2,219.87 : x
  2. Step 2: Convert to fraction form
    3,398.62/4,691.09 = 2,219.87/x
  3. Step 3: Cross multiply
    3,398.62x = 4,691.09 × 2,219.87
  4. Step 4: Simplify right side
    3,398.62x = 10,413,609.96
  5. Step 5: Solve for x
    x = 10,413,609.96/3,398.62
  6. Step 6: Final answer
    x = 3,064.07

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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.