Home / 5,145.97-7,105.44-3,949.06

Finding the Fourth Proportional to 5,145.97, 7,105.44 and 3,949.06

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Solution

The fourth proportional to 5,145.97, 7,105.44 and 3,949.06 is: 5,452.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,145.97 : 7,105.44 = 3,949.06 : x
  2. Step 2: Convert to fraction form
    5,145.97/7,105.44 = 3,949.06/x
  3. Step 3: Cross multiply
    5,145.97x = 7,105.44 × 3,949.06
  4. Step 4: Simplify right side
    5,145.97x = 28,059,799.01
  5. Step 5: Solve for x
    x = 28,059,799.01/5,145.97
  6. Step 6: Final answer
    x = 5,452.77

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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.