Home / 2,258.24-3,387.36-2,121.92

Finding the Fourth Proportional to 2,258.24, 3,387.36 and 2,121.92

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Solution

The fourth proportional to 2,258.24, 3,387.36 and 2,121.92 is: 3,182.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,258.24 : 3,387.36 = 2,121.92 : x
  2. Step 2: Convert to fraction form
    2,258.24/3,387.36 = 2,121.92/x
  3. Step 3: Cross multiply
    2,258.24x = 3,387.36 × 2,121.92
  4. Step 4: Simplify right side
    2,258.24x = 7,187,706.93
  5. Step 5: Solve for x
    x = 7,187,706.93/2,258.24
  6. Step 6: Final answer
    x = 3,182.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.