Home / 3,619.73-5,436.28-2,167.80

Finding the Fourth Proportional to 3,619.73, 5,436.28 and 2,167.80

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Solution

The fourth proportional to 3,619.73, 5,436.28 and 2,167.80 is: 3,255.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,619.73 : 5,436.28 = 2,167.80 : x
  2. Step 2: Convert to fraction form
    3,619.73/5,436.28 = 2,167.80/x
  3. Step 3: Cross multiply
    3,619.73x = 5,436.28 × 2,167.80
  4. Step 4: Simplify right side
    3,619.73x = 11,784,795.98
  5. Step 5: Solve for x
    x = 11,784,795.98/3,619.73
  6. Step 6: Final answer
    x = 3,255.71

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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.