Home / 5,451.26-8,178.25-2,163.26

Finding the Fourth Proportional to 5,451.26, 8,178.25 and 2,163.26

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Solution

The fourth proportional to 5,451.26, 8,178.25 and 2,163.26 is: 3,245.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,451.26 : 8,178.25 = 2,163.26 : x
  2. Step 2: Convert to fraction form
    5,451.26/8,178.25 = 2,163.26/x
  3. Step 3: Cross multiply
    5,451.26x = 8,178.25 × 2,163.26
  4. Step 4: Simplify right side
    5,451.26x = 17,691,700.19
  5. Step 5: Solve for x
    x = 17,691,700.19/5,451.26
  6. Step 6: Final answer
    x = 3,245.44

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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.