Home / 3,821.24-5,273.40-2,142.56

Finding the Fourth Proportional to 3,821.24, 5,273.40 and 2,142.56

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Solution

The fourth proportional to 3,821.24, 5,273.40 and 2,142.56 is: 2,956.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,821.24 : 5,273.40 = 2,142.56 : x
  2. Step 2: Convert to fraction form
    3,821.24/5,273.40 = 2,142.56/x
  3. Step 3: Cross multiply
    3,821.24x = 5,273.40 × 2,142.56
  4. Step 4: Simplify right side
    3,821.24x = 11,298,575.90
  5. Step 5: Solve for x
    x = 11,298,575.90/3,821.24
  6. Step 6: Final answer
    x = 2,956.78

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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.