Home / 3,934.24-5,427.21-3,189.04

Finding the Fourth Proportional to 3,934.24, 5,427.21 and 3,189.04

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Solution

The fourth proportional to 3,934.24, 5,427.21 and 3,189.04 is: 4,399.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,934.24 : 5,427.21 = 3,189.04 : x
  2. Step 2: Convert to fraction form
    3,934.24/5,427.21 = 3,189.04/x
  3. Step 3: Cross multiply
    3,934.24x = 5,427.21 × 3,189.04
  4. Step 4: Simplify right side
    3,934.24x = 17,307,589.78
  5. Step 5: Solve for x
    x = 17,307,589.78/3,934.24
  6. Step 6: Final answer
    x = 4,399.22

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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.