Home / 5,119.57-7,067.40-3,861.17

Finding the Fourth Proportional to 5,119.57, 7,067.40 and 3,861.17

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Solution

The fourth proportional to 5,119.57, 7,067.40 and 3,861.17 is: 5,330.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,119.57 : 7,067.40 = 3,861.17 : x
  2. Step 2: Convert to fraction form
    5,119.57/7,067.40 = 3,861.17/x
  3. Step 3: Cross multiply
    5,119.57x = 7,067.40 × 3,861.17
  4. Step 4: Simplify right side
    5,119.57x = 27,288,397.52
  5. Step 5: Solve for x
    x = 27,288,397.52/5,119.57
  6. Step 6: Final answer
    x = 5,330.22

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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.