Home / 5,505.57-8,255.52-2,217.78

Finding the Fourth Proportional to 5,505.57, 8,255.52 and 2,217.78

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Solution

The fourth proportional to 5,505.57, 8,255.52 and 2,217.78 is: 3,325.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,505.57 : 8,255.52 = 2,217.78 : x
  2. Step 2: Convert to fraction form
    5,505.57/8,255.52 = 2,217.78/x
  3. Step 3: Cross multiply
    5,505.57x = 8,255.52 × 2,217.78
  4. Step 4: Simplify right side
    5,505.57x = 18,308,927.15
  5. Step 5: Solve for x
    x = 18,308,927.15/5,505.57
  6. Step 6: Final answer
    x = 3,325.53

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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.