Home / 4,121.50-5,687.79-2,258.62

Finding the Fourth Proportional to 4,121.50, 5,687.79 and 2,258.62

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Solution

The fourth proportional to 4,121.50, 5,687.79 and 2,258.62 is: 3,116.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,121.50 : 5,687.79 = 2,258.62 : x
  2. Step 2: Convert to fraction form
    4,121.50/5,687.79 = 2,258.62/x
  3. Step 3: Cross multiply
    4,121.50x = 5,687.79 × 2,258.62
  4. Step 4: Simplify right side
    4,121.50x = 12,846,556.25
  5. Step 5: Solve for x
    x = 12,846,556.25/4,121.50
  6. Step 6: Final answer
    x = 3,116.96

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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.