Home / 5,517.36-7,612.92-3,422

Finding the Fourth Proportional to 5,517.36, 7,612.92 and 3,422

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Solution

The fourth proportional to 5,517.36, 7,612.92 and 3,422 is: 4,721.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,517.36 : 7,612.92 = 3,422 : x
  2. Step 2: Convert to fraction form
    5,517.36/7,612.92 = 3,422/x
  3. Step 3: Cross multiply
    5,517.36x = 7,612.92 × 3,422
  4. Step 4: Simplify right side
    5,517.36x = 26,051,412.24
  5. Step 5: Solve for x
    x = 26,051,412.24/5,517.36
  6. Step 6: Final answer
    x = 4,721.72

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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.