Home / 3,540.20-5,302.20-2,082.20

Finding the Fourth Proportional to 3,540.20, 5,302.20 and 2,082.20

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Solution

The fourth proportional to 3,540.20, 5,302.20 and 2,082.20 is: 3,118.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,540.20 : 5,302.20 = 2,082.20 : x
  2. Step 2: Convert to fraction form
    3,540.20/5,302.20 = 2,082.20/x
  3. Step 3: Cross multiply
    3,540.20x = 5,302.20 × 2,082.20
  4. Step 4: Simplify right side
    3,540.20x = 11,040,240.84
  5. Step 5: Solve for x
    x = 11,040,240.84/3,540.20
  6. Step 6: Final answer
    x = 3,118.54

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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.