Home / 3,227.18-4,834.62-2,128.28

Finding the Fourth Proportional to 3,227.18, 4,834.62 and 2,128.28

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Solution

The fourth proportional to 3,227.18, 4,834.62 and 2,128.28 is: 3,188.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,227.18 : 4,834.62 = 2,128.28 : x
  2. Step 2: Convert to fraction form
    3,227.18/4,834.62 = 2,128.28/x
  3. Step 3: Cross multiply
    3,227.18x = 4,834.62 × 2,128.28
  4. Step 4: Simplify right side
    3,227.18x = 10,289,400.88
  5. Step 5: Solve for x
    x = 10,289,400.88/3,227.18
  6. Step 6: Final answer
    x = 3,188.36

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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.