Home / 3,822.25-5,274.21-2,143.42

Finding the Fourth Proportional to 3,822.25, 5,274.21 and 2,143.42

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Solution

The fourth proportional to 3,822.25, 5,274.21 and 2,143.42 is: 2,957.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,822.25 : 5,274.21 = 2,143.42 : x
  2. Step 2: Convert to fraction form
    3,822.25/5,274.21 = 2,143.42/x
  3. Step 3: Cross multiply
    3,822.25x = 5,274.21 × 2,143.42
  4. Step 4: Simplify right side
    3,822.25x = 11,304,847.20
  5. Step 5: Solve for x
    x = 11,304,847.20/3,822.25
  6. Step 6: Final answer
    x = 2,957.64

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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.