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Finding the Fourth Proportional to 3,757.67, 5,185.67 and 2,079.19

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Solution

The fourth proportional to 3,757.67, 5,185.67 and 2,079.19 is: 2,869.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,757.67 : 5,185.67 = 2,079.19 : x
  2. Step 2: Convert to fraction form
    3,757.67/5,185.67 = 2,079.19/x
  3. Step 3: Cross multiply
    3,757.67x = 5,185.67 × 2,079.19
  4. Step 4: Simplify right side
    3,757.67x = 10,781,993.21
  5. Step 5: Solve for x
    x = 10,781,993.21/3,757.67
  6. Step 6: Final answer
    x = 2,869.33

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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.