Home / 1,942.47-2,914.20-1,249.48

Finding the Fourth Proportional to 1,942.47, 2,914.20 and 1,249.48

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Solution

The fourth proportional to 1,942.47, 2,914.20 and 1,249.48 is: 1,874.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,942.47 : 2,914.20 = 1,249.48 : x
  2. Step 2: Convert to fraction form
    1,942.47/2,914.20 = 1,249.48/x
  3. Step 3: Cross multiply
    1,942.47x = 2,914.20 × 1,249.48
  4. Step 4: Simplify right side
    1,942.47x = 3,641,234.62
  5. Step 5: Solve for x
    x = 3,641,234.62/1,942.47
  6. Step 6: Final answer
    x = 1,874.54

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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.