Home / 3,821.82-5,273.46-2,142.96

Finding the Fourth Proportional to 3,821.82, 5,273.46 and 2,142.96

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Solution

The fourth proportional to 3,821.82, 5,273.46 and 2,142.96 is: 2,956.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,821.82 : 5,273.46 = 2,142.96 : x
  2. Step 2: Convert to fraction form
    3,821.82/5,273.46 = 2,142.96/x
  3. Step 3: Cross multiply
    3,821.82x = 5,273.46 × 2,142.96
  4. Step 4: Simplify right side
    3,821.82x = 11,300,813.84
  5. Step 5: Solve for x
    x = 11,300,813.84/3,821.82
  6. Step 6: Final answer
    x = 2,956.92

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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.