Home / 3,249.56-4,481.34-2,189.72

Finding the Fourth Proportional to 3,249.56, 4,481.34 and 2,189.72

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Solution

The fourth proportional to 3,249.56, 4,481.34 and 2,189.72 is: 3,019.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,249.56 : 4,481.34 = 2,189.72 : x
  2. Step 2: Convert to fraction form
    3,249.56/4,481.34 = 2,189.72/x
  3. Step 3: Cross multiply
    3,249.56x = 4,481.34 × 2,189.72
  4. Step 4: Simplify right side
    3,249.56x = 9,812,879.82
  5. Step 5: Solve for x
    x = 9,812,879.82/3,249.56
  6. Step 6: Final answer
    x = 3,019.76

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1.5x scale

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.