Home / 3,822.22-5,274.35-2,143.40

Finding the Fourth Proportional to 3,822.22, 5,274.35 and 2,143.40

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Solution

The fourth proportional to 3,822.22, 5,274.35 and 2,143.40 is: 2,957.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,822.22 : 5,274.35 = 2,143.40 : x
  2. Step 2: Convert to fraction form
    3,822.22/5,274.35 = 2,143.40/x
  3. Step 3: Cross multiply
    3,822.22x = 5,274.35 × 2,143.40
  4. Step 4: Simplify right side
    3,822.22x = 11,305,004.70
  5. Step 5: Solve for x
    x = 11,305,004.70/3,822.22
  6. Step 6: Final answer
    x = 2,957.71

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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.