Home / 2,082.11-3,109.29-1,960.61

Finding the Fourth Proportional to 2,082.11, 3,109.29 and 1,960.61

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Solution

The fourth proportional to 2,082.11, 3,109.29 and 1,960.61 is: 2,927.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,082.11 : 3,109.29 = 1,960.61 : x
  2. Step 2: Convert to fraction form
    2,082.11/3,109.29 = 1,960.61/x
  3. Step 3: Cross multiply
    2,082.11x = 3,109.29 × 1,960.61
  4. Step 4: Simplify right side
    2,082.11x = 6,096,082.17
  5. Step 5: Solve for x
    x = 6,096,082.17/2,082.11
  6. Step 6: Final answer
    x = 2,927.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.