Home / 5,249.96-7,245.46-3,921.36

Finding the Fourth Proportional to 5,249.96, 7,245.46 and 3,921.36

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Solution

The fourth proportional to 5,249.96, 7,245.46 and 3,921.36 is: 5,411.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,249.96 : 7,245.46 = 3,921.36 : x
  2. Step 2: Convert to fraction form
    5,249.96/7,245.46 = 3,921.36/x
  3. Step 3: Cross multiply
    5,249.96x = 7,245.46 × 3,921.36
  4. Step 4: Simplify right side
    5,249.96x = 28,412,034.76
  5. Step 5: Solve for x
    x = 28,412,034.76/5,249.96
  6. Step 6: Final answer
    x = 5,411.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.