Home / 5,178.26-7,764.76-2,545.97

Finding the Fourth Proportional to 5,178.26, 7,764.76 and 2,545.97

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Solution

The fourth proportional to 5,178.26, 7,764.76 and 2,545.97 is: 3,817.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,178.26 : 7,764.76 = 2,545.97 : x
  2. Step 2: Convert to fraction form
    5,178.26/7,764.76 = 2,545.97/x
  3. Step 3: Cross multiply
    5,178.26x = 7,764.76 × 2,545.97
  4. Step 4: Simplify right side
    5,178.26x = 19,768,810.38
  5. Step 5: Solve for x
    x = 19,768,810.38/5,178.26
  6. Step 6: Final answer
    x = 3,817.65

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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.