Home / 8,610.28-12,917.82-3,680.20

Finding the Fourth Proportional to 8,610.28, 12,917.82 and 3,680.20

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Solution

The fourth proportional to 8,610.28, 12,917.82 and 3,680.20 is: 5,521.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,610.28 : 12,917.82 = 3,680.20 : x
  2. Step 2: Convert to fraction form
    8,610.28/12,917.82 = 3,680.20/x
  3. Step 3: Cross multiply
    8,610.28x = 12,917.82 × 3,680.20
  4. Step 4: Simplify right side
    8,610.28x = 47,540,161.16
  5. Step 5: Solve for x
    x = 47,540,161.16/8,610.28
  6. Step 6: Final answer
    x = 5,521.33

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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.