Home / 4,121.12-5,687.30-2,258.12

Finding the Fourth Proportional to 4,121.12, 5,687.30 and 2,258.12

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Solution

The fourth proportional to 4,121.12, 5,687.30 and 2,258.12 is: 3,116.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,121.12 : 5,687.30 = 2,258.12 : x
  2. Step 2: Convert to fraction form
    4,121.12/5,687.30 = 2,258.12/x
  3. Step 3: Cross multiply
    4,121.12x = 5,687.30 × 2,258.12
  4. Step 4: Simplify right side
    4,121.12x = 12,842,605.88
  5. Step 5: Solve for x
    x = 12,842,605.88/4,121.12
  6. Step 6: Final answer
    x = 3,116.29

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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.