Home / 5,145.91-7,091.07-3,571.27

Finding the Fourth Proportional to 5,145.91, 7,091.07 and 3,571.27

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Solution

The fourth proportional to 5,145.91, 7,091.07 and 3,571.27 is: 4,921.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,145.91 : 7,091.07 = 3,571.27 : x
  2. Step 2: Convert to fraction form
    5,145.91/7,091.07 = 3,571.27/x
  3. Step 3: Cross multiply
    5,145.91x = 7,091.07 × 3,571.27
  4. Step 4: Simplify right side
    5,145.91x = 25,324,125.56
  5. Step 5: Solve for x
    x = 25,324,125.56/5,145.91
  6. Step 6: Final answer
    x = 4,921.21

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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.