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Finding the Fourth Proportional to 3,379.41, 4,665.11 and 1,982.25

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Solution

The fourth proportional to 3,379.41, 4,665.11 and 1,982.25 is: 2,736.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,379.41 : 4,665.11 = 1,982.25 : x
  2. Step 2: Convert to fraction form
    3,379.41/4,665.11 = 1,982.25/x
  3. Step 3: Cross multiply
    3,379.41x = 4,665.11 × 1,982.25
  4. Step 4: Simplify right side
    3,379.41x = 9,247,414.30
  5. Step 5: Solve for x
    x = 9,247,414.30/3,379.41
  6. Step 6: Final answer
    x = 2,736.40

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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.