Home / 2,839.41-3,919.46-2,099.33

Finding the Fourth Proportional to 2,839.41, 3,919.46 and 2,099.33

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Solution

The fourth proportional to 2,839.41, 3,919.46 and 2,099.33 is: 2,897.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,839.41 : 3,919.46 = 2,099.33 : x
  2. Step 2: Convert to fraction form
    2,839.41/3,919.46 = 2,099.33/x
  3. Step 3: Cross multiply
    2,839.41x = 3,919.46 × 2,099.33
  4. Step 4: Simplify right side
    2,839.41x = 8,228,209.87
  5. Step 5: Solve for x
    x = 8,228,209.87/2,839.41
  6. Step 6: Final answer
    x = 2,897.86

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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.