Home / 2,183.15-3,273.66-721.82

Finding the Fourth Proportional to 2,183.15, 3,273.66 and 721.82

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Solution

The fourth proportional to 2,183.15, 3,273.66 and 721.82 is: 1,082.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,183.15 : 3,273.66 = 721.82 : x
  2. Step 2: Convert to fraction form
    2,183.15/3,273.66 = 721.82/x
  3. Step 3: Cross multiply
    2,183.15x = 3,273.66 × 721.82
  4. Step 4: Simplify right side
    2,183.15x = 2,362,993.26
  5. Step 5: Solve for x
    x = 2,362,993.26/2,183.15
  6. Step 6: Final answer
    x = 1,082.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.