Home / 5,450.20-8,178-2,163.22

Finding the Fourth Proportional to 5,450.20, 8,178 and 2,163.22

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Solution

The fourth proportional to 5,450.20, 8,178 and 2,163.22 is: 3,245.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,450.20 : 8,178 = 2,163.22 : x
  2. Step 2: Convert to fraction form
    5,450.20/8,178 = 2,163.22/x
  3. Step 3: Cross multiply
    5,450.20x = 8,178 × 2,163.22
  4. Step 4: Simplify right side
    5,450.20x = 17,690,813.16
  5. Step 5: Solve for x
    x = 17,690,813.16/5,450.20
  6. Step 6: Final answer
    x = 3,245.90

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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.