Home / 5,132.97-7,082.37-3,939.30

Finding the Fourth Proportional to 5,132.97, 7,082.37 and 3,939.30

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Solution

The fourth proportional to 5,132.97, 7,082.37 and 3,939.30 is: 5,435.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,132.97 : 7,082.37 = 3,939.30 : x
  2. Step 2: Convert to fraction form
    5,132.97/7,082.37 = 3,939.30/x
  3. Step 3: Cross multiply
    5,132.97x = 7,082.37 × 3,939.30
  4. Step 4: Simplify right side
    5,132.97x = 27,899,580.14
  5. Step 5: Solve for x
    x = 27,899,580.14/5,132.97
  6. Step 6: Final answer
    x = 5,435.37

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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.