Home / 8,080.97-12,122.66-2,885.63

Finding the Fourth Proportional to 8,080.97, 12,122.66 and 2,885.63

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Solution

The fourth proportional to 8,080.97, 12,122.66 and 2,885.63 is: 4,328.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,080.97 : 12,122.66 = 2,885.63 : x
  2. Step 2: Convert to fraction form
    8,080.97/12,122.66 = 2,885.63/x
  3. Step 3: Cross multiply
    8,080.97x = 12,122.66 × 2,885.63
  4. Step 4: Simplify right side
    8,080.97x = 34,981,457.98
  5. Step 5: Solve for x
    x = 34,981,457.98/8,080.97
  6. Step 6: Final answer
    x = 4,328.87

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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.