Home / 3,680.22-5,078.73-2,086.92

Finding the Fourth Proportional to 3,680.22, 5,078.73 and 2,086.92

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Solution

The fourth proportional to 3,680.22, 5,078.73 and 2,086.92 is: 2,879.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,680.22 : 5,078.73 = 2,086.92 : x
  2. Step 2: Convert to fraction form
    3,680.22/5,078.73 = 2,086.92/x
  3. Step 3: Cross multiply
    3,680.22x = 5,078.73 × 2,086.92
  4. Step 4: Simplify right side
    3,680.22x = 10,598,903.21
  5. Step 5: Solve for x
    x = 10,598,903.21/3,680.22
  6. Step 6: Final answer
    x = 2,879.96

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.