Home / 5,471.28-8,201.88-1,771.61

Finding the Fourth Proportional to 5,471.28, 8,201.88 and 1,771.61

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Solution

The fourth proportional to 5,471.28, 8,201.88 and 1,771.61 is: 2,655.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,471.28 : 8,201.88 = 1,771.61 : x
  2. Step 2: Convert to fraction form
    5,471.28/8,201.88 = 1,771.61/x
  3. Step 3: Cross multiply
    5,471.28x = 8,201.88 × 1,771.61
  4. Step 4: Simplify right side
    5,471.28x = 14,530,491.62
  5. Step 5: Solve for x
    x = 14,530,491.62/5,471.28
  6. Step 6: Final answer
    x = 2,655.78

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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.