Home / 5,227.28-7,845.24-2,151.44

Finding the Fourth Proportional to 5,227.28, 7,845.24 and 2,151.44

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Solution

The fourth proportional to 5,227.28, 7,845.24 and 2,151.44 is: 3,228.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,227.28 : 7,845.24 = 2,151.44 : x
  2. Step 2: Convert to fraction form
    5,227.28/7,845.24 = 2,151.44/x
  3. Step 3: Cross multiply
    5,227.28x = 7,845.24 × 2,151.44
  4. Step 4: Simplify right side
    5,227.28x = 16,878,563.15
  5. Step 5: Solve for x
    x = 16,878,563.15/5,227.28
  6. Step 6: Final answer
    x = 3,228.94

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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.