Home / 3,272.90-4,911.10-2,177.78

Finding the Fourth Proportional to 3,272.90, 4,911.10 and 2,177.78

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Solution

The fourth proportional to 3,272.90, 4,911.10 and 2,177.78 is: 3,267.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,272.90 : 4,911.10 = 2,177.78 : x
  2. Step 2: Convert to fraction form
    3,272.90/4,911.10 = 2,177.78/x
  3. Step 3: Cross multiply
    3,272.90x = 4,911.10 × 2,177.78
  4. Step 4: Simplify right side
    3,272.90x = 10,695,295.36
  5. Step 5: Solve for x
    x = 10,695,295.36/3,272.90
  6. Step 6: Final answer
    x = 3,267.83

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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.