Home / 3,431.57-5,147.33-966.38

Finding the Fourth Proportional to 3,431.57, 5,147.33 and 966.38

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Solution

The fourth proportional to 3,431.57, 5,147.33 and 966.38 is: 1,449.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,431.57 : 5,147.33 = 966.38 : x
  2. Step 2: Convert to fraction form
    3,431.57/5,147.33 = 966.38/x
  3. Step 3: Cross multiply
    3,431.57x = 5,147.33 × 966.38
  4. Step 4: Simplify right side
    3,431.57x = 4,974,246.20
  5. Step 5: Solve for x
    x = 4,974,246.20/3,431.57
  6. Step 6: Final answer
    x = 1,449.56

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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.