Home / 5,179.31-7,766.57-1,668.66

Finding the Fourth Proportional to 5,179.31, 7,766.57 and 1,668.66

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Solution

The fourth proportional to 5,179.31, 7,766.57 and 1,668.66 is: 2,502.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,179.31 : 7,766.57 = 1,668.66 : x
  2. Step 2: Convert to fraction form
    5,179.31/7,766.57 = 1,668.66/x
  3. Step 3: Cross multiply
    5,179.31x = 7,766.57 × 1,668.66
  4. Step 4: Simplify right side
    5,179.31x = 12,959,764.70
  5. Step 5: Solve for x
    x = 12,959,764.70/5,179.31
  6. Step 6: Final answer
    x = 2,502.22

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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.