Home / 2,257.48-3,128.61-2,222.88

Finding the Fourth Proportional to 2,257.48, 3,128.61 and 2,222.88

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Solution

The fourth proportional to 2,257.48, 3,128.61 and 2,222.88 is: 3,080.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,257.48 : 3,128.61 = 2,222.88 : x
  2. Step 2: Convert to fraction form
    2,257.48/3,128.61 = 2,222.88/x
  3. Step 3: Cross multiply
    2,257.48x = 3,128.61 × 2,222.88
  4. Step 4: Simplify right side
    2,257.48x = 6,954,517.21
  5. Step 5: Solve for x
    x = 6,954,517.21/2,257.48
  6. Step 6: Final answer
    x = 3,080.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.