Home / 5,249.23-7,869.18-2,131.54

Finding the Fourth Proportional to 5,249.23, 7,869.18 and 2,131.54

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Solution

The fourth proportional to 5,249.23, 7,869.18 and 2,131.54 is: 3,195.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,249.23 : 7,869.18 = 2,131.54 : x
  2. Step 2: Convert to fraction form
    5,249.23/7,869.18 = 2,131.54/x
  3. Step 3: Cross multiply
    5,249.23x = 7,869.18 × 2,131.54
  4. Step 4: Simplify right side
    5,249.23x = 16,773,471.94
  5. Step 5: Solve for x
    x = 16,773,471.94/5,249.23
  6. Step 6: Final answer
    x = 3,195.42

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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.