Home / 5,320.26-7,974.72-2,545.20

Finding the Fourth Proportional to 5,320.26, 7,974.72 and 2,545.20

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Solution

The fourth proportional to 5,320.26, 7,974.72 and 2,545.20 is: 3,815.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,320.26 : 7,974.72 = 2,545.20 : x
  2. Step 2: Convert to fraction form
    5,320.26/7,974.72 = 2,545.20/x
  3. Step 3: Cross multiply
    5,320.26x = 7,974.72 × 2,545.20
  4. Step 4: Simplify right side
    5,320.26x = 20,297,257.34
  5. Step 5: Solve for x
    x = 20,297,257.34/5,320.26
  6. Step 6: Final answer
    x = 3,815.09

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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.