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Finding the Fourth Proportional to 5,505.45, 8,258.45 and 2,218.11

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Solution

The fourth proportional to 5,505.45, 8,258.45 and 2,218.11 is: 3,327.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,505.45 : 8,258.45 = 2,218.11 : x
  2. Step 2: Convert to fraction form
    5,505.45/8,258.45 = 2,218.11/x
  3. Step 3: Cross multiply
    5,505.45x = 8,258.45 × 2,218.11
  4. Step 4: Simplify right side
    5,505.45x = 18,318,150.53
  5. Step 5: Solve for x
    x = 18,318,150.53/5,505.45
  6. Step 6: Final answer
    x = 3,327.28

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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.