Home / 8,120.19-12,180.33-2,276.85

Finding the Fourth Proportional to 8,120.19, 12,180.33 and 2,276.85

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Solution

The fourth proportional to 8,120.19, 12,180.33 and 2,276.85 is: 3,415.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,120.19 : 12,180.33 = 2,276.85 : x
  2. Step 2: Convert to fraction form
    8,120.19/12,180.33 = 2,276.85/x
  3. Step 3: Cross multiply
    8,120.19x = 12,180.33 × 2,276.85
  4. Step 4: Simplify right side
    8,120.19x = 27,732,784.36
  5. Step 5: Solve for x
    x = 27,732,784.36/8,120.19
  6. Step 6: Final answer
    x = 3,415.29

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Similar ratio
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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.