Home / 3,822.28-5,275.40-2,229.16

Finding the Fourth Proportional to 3,822.28, 5,275.40 and 2,229.16

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Solution

The fourth proportional to 3,822.28, 5,275.40 and 2,229.16 is: 3,076.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,822.28 : 5,275.40 = 2,229.16 : x
  2. Step 2: Convert to fraction form
    3,822.28/5,275.40 = 2,229.16/x
  3. Step 3: Cross multiply
    3,822.28x = 5,275.40 × 2,229.16
  4. Step 4: Simplify right side
    3,822.28x = 11,759,710.66
  5. Step 5: Solve for x
    x = 11,759,710.66/3,822.28
  6. Step 6: Final answer
    x = 3,076.62

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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.