Home / 2,082.17-3,122.21-695.03

Finding the Fourth Proportional to 2,082.17, 3,122.21 and 695.03

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Solution

The fourth proportional to 2,082.17, 3,122.21 and 695.03 is: 1,042.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,082.17 : 3,122.21 = 695.03 : x
  2. Step 2: Convert to fraction form
    2,082.17/3,122.21 = 695.03/x
  3. Step 3: Cross multiply
    2,082.17x = 3,122.21 × 695.03
  4. Step 4: Simplify right side
    2,082.17x = 2,170,010.53
  5. Step 5: Solve for x
    x = 2,170,010.53/2,082.17
  6. Step 6: Final answer
    x = 1,042.19

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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.