Home / 7,581.08-11,375.08-3,422.18

Finding the Fourth Proportional to 7,581.08, 11,375.08 and 3,422.18

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Solution

The fourth proportional to 7,581.08, 11,375.08 and 3,422.18 is: 5,134.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,581.08 : 11,375.08 = 3,422.18 : x
  2. Step 2: Convert to fraction form
    7,581.08/11,375.08 = 3,422.18/x
  3. Step 3: Cross multiply
    7,581.08x = 11,375.08 × 3,422.18
  4. Step 4: Simplify right side
    7,581.08x = 38,927,571.27
  5. Step 5: Solve for x
    x = 38,927,571.27/7,581.08
  6. Step 6: Final answer
    x = 5,134.83

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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.