Home / 5,505.20-8,257.78-2,218.25

Finding the Fourth Proportional to 5,505.20, 8,257.78 and 2,218.25

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Solution

The fourth proportional to 5,505.20, 8,257.78 and 2,218.25 is: 3,327.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,505.20 : 8,257.78 = 2,218.25 : x
  2. Step 2: Convert to fraction form
    5,505.20/8,257.78 = 2,218.25/x
  3. Step 3: Cross multiply
    5,505.20x = 8,257.78 × 2,218.25
  4. Step 4: Simplify right side
    5,505.20x = 18,317,843.90
  5. Step 5: Solve for x
    x = 18,317,843.90/5,505.20
  6. Step 6: Final answer
    x = 3,327.37

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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.