Home / 7,571.49-11,358.56-3,129.13

Finding the Fourth Proportional to 7,571.49, 11,358.56 and 3,129.13

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Solution

The fourth proportional to 7,571.49, 11,358.56 and 3,129.13 is: 4,694.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,571.49 : 11,358.56 = 3,129.13 : x
  2. Step 2: Convert to fraction form
    7,571.49/11,358.56 = 3,129.13/x
  3. Step 3: Cross multiply
    7,571.49x = 11,358.56 × 3,129.13
  4. Step 4: Simplify right side
    7,571.49x = 35,542,410.85
  5. Step 5: Solve for x
    x = 35,542,410.85/7,571.49
  6. Step 6: Final answer
    x = 4,694.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.