Home / 3,249.94-4,484.55-1,991.30

Finding the Fourth Proportional to 3,249.94, 4,484.55 and 1,991.30

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Solution

The fourth proportional to 3,249.94, 4,484.55 and 1,991.30 is: 2,747.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,249.94 : 4,484.55 = 1,991.30 : x
  2. Step 2: Convert to fraction form
    3,249.94/4,484.55 = 1,991.30/x
  3. Step 3: Cross multiply
    3,249.94x = 4,484.55 × 1,991.30
  4. Step 4: Simplify right side
    3,249.94x = 8,930,084.42
  5. Step 5: Solve for x
    x = 8,930,084.42/3,249.94
  6. Step 6: Final answer
    x = 2,747.77

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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.