Home / 3,949.23-5,449.94-2,180.85

Finding the Fourth Proportional to 3,949.23, 5,449.94 and 2,180.85

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Solution

The fourth proportional to 3,949.23, 5,449.94 and 2,180.85 is: 3,009.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,949.23 : 5,449.94 = 2,180.85 : x
  2. Step 2: Convert to fraction form
    3,949.23/5,449.94 = 2,180.85/x
  3. Step 3: Cross multiply
    3,949.23x = 5,449.94 × 2,180.85
  4. Step 4: Simplify right side
    3,949.23x = 11,885,501.65
  5. Step 5: Solve for x
    x = 11,885,501.65/3,949.23
  6. Step 6: Final answer
    x = 3,009.57

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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.