Home / 3,515.28-5,269-2,545.60

Finding the Fourth Proportional to 3,515.28, 5,269 and 2,545.60

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Solution

The fourth proportional to 3,515.28, 5,269 and 2,545.60 is: 3,815.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,515.28 : 5,269 = 2,545.60 : x
  2. Step 2: Convert to fraction form
    3,515.28/5,269 = 2,545.60/x
  3. Step 3: Cross multiply
    3,515.28x = 5,269 × 2,545.60
  4. Step 4: Simplify right side
    3,515.28x = 13,412,766.40
  5. Step 5: Solve for x
    x = 13,412,766.40/3,515.28
  6. Step 6: Final answer
    x = 3,815.56

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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.