Home / 2,217.66-3,326.22-1,179.78

Finding the Fourth Proportional to 2,217.66, 3,326.22 and 1,179.78

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Solution

The fourth proportional to 2,217.66, 3,326.22 and 1,179.78 is: 1,769.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,217.66 : 3,326.22 = 1,179.78 : x
  2. Step 2: Convert to fraction form
    2,217.66/3,326.22 = 1,179.78/x
  3. Step 3: Cross multiply
    2,217.66x = 3,326.22 × 1,179.78
  4. Step 4: Simplify right side
    2,217.66x = 3,924,207.83
  5. Step 5: Solve for x
    x = 3,924,207.83/2,217.66
  6. Step 6: Final answer
    x = 1,769.53

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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.