Home / 3,911.52-5,398.16-2,233.20

Finding the Fourth Proportional to 3,911.52, 5,398.16 and 2,233.20

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Solution

The fourth proportional to 3,911.52, 5,398.16 and 2,233.20 is: 3,081.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,911.52 : 5,398.16 = 2,233.20 : x
  2. Step 2: Convert to fraction form
    3,911.52/5,398.16 = 2,233.20/x
  3. Step 3: Cross multiply
    3,911.52x = 5,398.16 × 2,233.20
  4. Step 4: Simplify right side
    3,911.52x = 12,055,170.91
  5. Step 5: Solve for x
    x = 12,055,170.91/3,911.52
  6. Step 6: Final answer
    x = 3,081.97

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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.