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Finding the Fourth Proportional to 2,482.11, 3,731.40 and 1,940.85

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Solution

The fourth proportional to 2,482.11, 3,731.40 and 1,940.85 is: 2,917.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,482.11 : 3,731.40 = 1,940.85 : x
  2. Step 2: Convert to fraction form
    2,482.11/3,731.40 = 1,940.85/x
  3. Step 3: Cross multiply
    2,482.11x = 3,731.40 × 1,940.85
  4. Step 4: Simplify right side
    2,482.11x = 7,242,087.69
  5. Step 5: Solve for x
    x = 7,242,087.69/2,482.11
  6. Step 6: Final answer
    x = 2,917.71

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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.