Home / 3,949.65-5,450.34-2,270.92

Finding the Fourth Proportional to 3,949.65, 5,450.34 and 2,270.92

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Solution

The fourth proportional to 3,949.65, 5,450.34 and 2,270.92 is: 3,133.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,949.65 : 5,450.34 = 2,270.92 : x
  2. Step 2: Convert to fraction form
    3,949.65/5,450.34 = 2,270.92/x
  3. Step 3: Cross multiply
    3,949.65x = 5,450.34 × 2,270.92
  4. Step 4: Simplify right side
    3,949.65x = 12,377,286.11
  5. Step 5: Solve for x
    x = 12,377,286.11/3,949.65
  6. Step 6: Final answer
    x = 3,133.77

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Double scale
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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.