Home / 2,721.15-4,082.40-773.37

Finding the Fourth Proportional to 2,721.15, 4,082.40 and 773.37

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Solution

The fourth proportional to 2,721.15, 4,082.40 and 773.37 is: 1,160.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,721.15 : 4,082.40 = 773.37 : x
  2. Step 2: Convert to fraction form
    2,721.15/4,082.40 = 773.37/x
  3. Step 3: Cross multiply
    2,721.15x = 4,082.40 × 773.37
  4. Step 4: Simplify right side
    2,721.15x = 3,157,205.69
  5. Step 5: Solve for x
    x = 3,157,205.69/2,721.15
  6. Step 6: Final answer
    x = 1,160.25

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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.