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Finding the Fourth Proportional to 5,578.98, 8,356.56 and 2,938.16

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Solution

The fourth proportional to 5,578.98, 8,356.56 and 2,938.16 is: 4,400.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,578.98 : 8,356.56 = 2,938.16 : x
  2. Step 2: Convert to fraction form
    5,578.98/8,356.56 = 2,938.16/x
  3. Step 3: Cross multiply
    5,578.98x = 8,356.56 × 2,938.16
  4. Step 4: Simplify right side
    5,578.98x = 24,552,910.33
  5. Step 5: Solve for x
    x = 24,552,910.33/5,578.98
  6. Step 6: Final answer
    x = 4,400.97

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1.5x scale

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.