Home / 4,080.94-6,120.48-1,998.86

Finding the Fourth Proportional to 4,080.94, 6,120.48 and 1,998.86

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Solution

The fourth proportional to 4,080.94, 6,120.48 and 1,998.86 is: 2,997.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,080.94 : 6,120.48 = 1,998.86 : x
  2. Step 2: Convert to fraction form
    4,080.94/6,120.48 = 1,998.86/x
  3. Step 3: Cross multiply
    4,080.94x = 6,120.48 × 1,998.86
  4. Step 4: Simplify right side
    4,080.94x = 12,233,982.65
  5. Step 5: Solve for x
    x = 12,233,982.65/4,080.94
  6. Step 6: Final answer
    x = 2,997.83

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Half scale
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Double scale
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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.