Home / 4,081.11-6,120.87-1,999.05

Finding the Fourth Proportional to 4,081.11, 6,120.87 and 1,999.05

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Solution

The fourth proportional to 4,081.11, 6,120.87 and 1,999.05 is: 2,998.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,081.11 : 6,120.87 = 1,999.05 : x
  2. Step 2: Convert to fraction form
    4,081.11/6,120.87 = 1,999.05/x
  3. Step 3: Cross multiply
    4,081.11x = 6,120.87 × 1,999.05
  4. Step 4: Simplify right side
    4,081.11x = 12,235,946.37
  5. Step 5: Solve for x
    x = 12,235,946.37/4,081.11
  6. Step 6: Final answer
    x = 2,998.19

Related Problems

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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.