Home / 8,081.79-12,122.70-2,238.42

Finding the Fourth Proportional to 8,081.79, 12,122.70 and 2,238.42

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Solution

The fourth proportional to 8,081.79, 12,122.70 and 2,238.42 is: 3,357.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,081.79 : 12,122.70 = 2,238.42 : x
  2. Step 2: Convert to fraction form
    8,081.79/12,122.70 = 2,238.42/x
  3. Step 3: Cross multiply
    8,081.79x = 12,122.70 × 2,238.42
  4. Step 4: Simplify right side
    8,081.79x = 27,135,633.52
  5. Step 5: Solve for x
    x = 27,135,633.52/8,081.79
  6. Step 6: Final answer
    x = 3,357.63

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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.