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Finding the Fourth Proportional to 5,578.72, 8,366.16 and 2,290.88

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Solution

The fourth proportional to 5,578.72, 8,366.16 and 2,290.88 is: 3,435.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,578.72 : 8,366.16 = 2,290.88 : x
  2. Step 2: Convert to fraction form
    5,578.72/8,366.16 = 2,290.88/x
  3. Step 3: Cross multiply
    5,578.72x = 8,366.16 × 2,290.88
  4. Step 4: Simplify right side
    5,578.72x = 19,165,868.62
  5. Step 5: Solve for x
    x = 19,165,868.62/5,578.72
  6. Step 6: Final answer
    x = 3,435.53

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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.