Home / 3,761.07-5,189.85-2,082.21

Finding the Fourth Proportional to 3,761.07, 5,189.85 and 2,082.21

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Solution

The fourth proportional to 3,761.07, 5,189.85 and 2,082.21 is: 2,873.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,761.07 : 5,189.85 = 2,082.21 : x
  2. Step 2: Convert to fraction form
    3,761.07/5,189.85 = 2,082.21/x
  3. Step 3: Cross multiply
    3,761.07x = 5,189.85 × 2,082.21
  4. Step 4: Simplify right side
    3,761.07x = 10,806,357.57
  5. Step 5: Solve for x
    x = 10,806,357.57/3,761.07
  6. Step 6: Final answer
    x = 2,873.21

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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.