Home / 5,679.97-8,521.18-2,391.17

Finding the Fourth Proportional to 5,679.97, 8,521.18 and 2,391.17

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Solution

The fourth proportional to 5,679.97, 8,521.18 and 2,391.17 is: 3,587.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,679.97 : 8,521.18 = 2,391.17 : x
  2. Step 2: Convert to fraction form
    5,679.97/8,521.18 = 2,391.17/x
  3. Step 3: Cross multiply
    5,679.97x = 8,521.18 × 2,391.17
  4. Step 4: Simplify right side
    5,679.97x = 20,375,541.40
  5. Step 5: Solve for x
    x = 20,375,541.40/5,679.97
  6. Step 6: Final answer
    x = 3,587.26

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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.