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Finding the Fourth Proportional to 5,454.86, 8,182.22 and 3,895.56

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Solution

The fourth proportional to 5,454.86, 8,182.22 and 3,895.56 is: 5,843.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,454.86 : 8,182.22 = 3,895.56 : x
  2. Step 2: Convert to fraction form
    5,454.86/8,182.22 = 3,895.56/x
  3. Step 3: Cross multiply
    5,454.86x = 8,182.22 × 3,895.56
  4. Step 4: Simplify right side
    5,454.86x = 31,874,309.47
  5. Step 5: Solve for x
    x = 31,874,309.47/5,454.86
  6. Step 6: Final answer
    x = 5,843.29

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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.