Home / 8,081.52-12,122.36-2,238.59

Finding the Fourth Proportional to 8,081.52, 12,122.36 and 2,238.59

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Solution

The fourth proportional to 8,081.52, 12,122.36 and 2,238.59 is: 3,357.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,081.52 : 12,122.36 = 2,238.59 : x
  2. Step 2: Convert to fraction form
    8,081.52/12,122.36 = 2,238.59/x
  3. Step 3: Cross multiply
    8,081.52x = 12,122.36 × 2,238.59
  4. Step 4: Simplify right side
    8,081.52x = 27,136,922.07
  5. Step 5: Solve for x
    x = 27,136,922.07/8,081.52
  6. Step 6: Final answer
    x = 3,357.90

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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.