Home / 2,004.38-2,766.11-1,120.23

Finding the Fourth Proportional to 2,004.38, 2,766.11 and 1,120.23

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Solution

The fourth proportional to 2,004.38, 2,766.11 and 1,120.23 is: 1,545.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,004.38 : 2,766.11 = 1,120.23 : x
  2. Step 2: Convert to fraction form
    2,004.38/2,766.11 = 1,120.23/x
  3. Step 3: Cross multiply
    2,004.38x = 2,766.11 × 1,120.23
  4. Step 4: Simplify right side
    2,004.38x = 3,098,673.80
  5. Step 5: Solve for x
    x = 3,098,673.80/2,004.38
  6. Step 6: Final answer
    x = 1,545.96

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Half scale
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Double scale
Find fourth proportional to 2,005.38, 2,767.49 and 1,121.23
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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.