Home / 3,972.16-5,959.12-2,122.30

Finding the Fourth Proportional to 3,972.16, 5,959.12 and 2,122.30

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Solution

The fourth proportional to 3,972.16, 5,959.12 and 2,122.30 is: 3,183.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,972.16 : 5,959.12 = 2,122.30 : x
  2. Step 2: Convert to fraction form
    3,972.16/5,959.12 = 2,122.30/x
  3. Step 3: Cross multiply
    3,972.16x = 5,959.12 × 2,122.30
  4. Step 4: Simplify right side
    3,972.16x = 12,647,040.38
  5. Step 5: Solve for x
    x = 12,647,040.38/3,972.16
  6. Step 6: Final answer
    x = 3,183.92

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1.5x scale

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.