Home / 3,821.93-5,274.22-2,143.34

Finding the Fourth Proportional to 3,821.93, 5,274.22 and 2,143.34

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Solution

The fourth proportional to 3,821.93, 5,274.22 and 2,143.34 is: 2,957.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,821.93 : 5,274.22 = 2,143.34 : x
  2. Step 2: Convert to fraction form
    3,821.93/5,274.22 = 2,143.34/x
  3. Step 3: Cross multiply
    3,821.93x = 5,274.22 × 2,143.34
  4. Step 4: Simplify right side
    3,821.93x = 11,304,446.69
  5. Step 5: Solve for x
    x = 11,304,446.69/3,821.93
  6. Step 6: Final answer
    x = 2,957.78

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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.