Home / 3,822.29-5,274.55-2,143.43

Finding the Fourth Proportional to 3,822.29, 5,274.55 and 2,143.43

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Solution

The fourth proportional to 3,822.29, 5,274.55 and 2,143.43 is: 2,957.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,822.29 : 5,274.55 = 2,143.43 : x
  2. Step 2: Convert to fraction form
    3,822.29/5,274.55 = 2,143.43/x
  3. Step 3: Cross multiply
    3,822.29x = 5,274.55 × 2,143.43
  4. Step 4: Simplify right side
    3,822.29x = 11,305,624.79
  5. Step 5: Solve for x
    x = 11,305,624.79/3,822.29
  6. Step 6: Final answer
    x = 2,957.82

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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.