Home / 5,409.44-8,115.78-2,290.82

Finding the Fourth Proportional to 5,409.44, 8,115.78 and 2,290.82

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Solution

The fourth proportional to 5,409.44, 8,115.78 and 2,290.82 is: 3,436.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,409.44 : 8,115.78 = 2,290.82 : x
  2. Step 2: Convert to fraction form
    5,409.44/8,115.78 = 2,290.82/x
  3. Step 3: Cross multiply
    5,409.44x = 8,115.78 × 2,290.82
  4. Step 4: Simplify right side
    5,409.44x = 18,591,791.14
  5. Step 5: Solve for x
    x = 18,591,791.14/5,409.44
  6. Step 6: Final answer
    x = 3,436.92

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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.