Home / 3,249.09-4,481.82-1,990.71

Finding the Fourth Proportional to 3,249.09, 4,481.82 and 1,990.71

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Solution

The fourth proportional to 3,249.09, 4,481.82 and 1,990.71 is: 2,746.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,249.09 : 4,481.82 = 1,990.71 : x
  2. Step 2: Convert to fraction form
    3,249.09/4,481.82 = 1,990.71/x
  3. Step 3: Cross multiply
    3,249.09x = 4,481.82 × 1,990.71
  4. Step 4: Simplify right side
    3,249.09x = 8,922,003.89
  5. Step 5: Solve for x
    x = 8,922,003.89/3,249.09
  6. Step 6: Final answer
    x = 2,746.00

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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.