Home / 5,179.05-7,766.19-1,668.42

Finding the Fourth Proportional to 5,179.05, 7,766.19 and 1,668.42

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Solution

The fourth proportional to 5,179.05, 7,766.19 and 1,668.42 is: 2,501.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,179.05 : 7,766.19 = 1,668.42 : x
  2. Step 2: Convert to fraction form
    5,179.05/7,766.19 = 1,668.42/x
  3. Step 3: Cross multiply
    5,179.05x = 7,766.19 × 1,668.42
  4. Step 4: Simplify right side
    5,179.05x = 12,957,266.72
  5. Step 5: Solve for x
    x = 12,957,266.72/5,179.05
  6. Step 6: Final answer
    x = 2,501.86

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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.