Home / 2,839.14-4,256.57-1,912.09

Finding the Fourth Proportional to 2,839.14, 4,256.57 and 1,912.09

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Solution

The fourth proportional to 2,839.14, 4,256.57 and 1,912.09 is: 2,866.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,839.14 : 4,256.57 = 1,912.09 : x
  2. Step 2: Convert to fraction form
    2,839.14/4,256.57 = 1,912.09/x
  3. Step 3: Cross multiply
    2,839.14x = 4,256.57 × 1,912.09
  4. Step 4: Simplify right side
    2,839.14x = 8,138,944.93
  5. Step 5: Solve for x
    x = 8,138,944.93/2,839.14
  6. Step 6: Final answer
    x = 2,866.69

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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.