Home / 3,912.11-5,867.65-1,936.98

Finding the Fourth Proportional to 3,912.11, 5,867.65 and 1,936.98

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Solution

The fourth proportional to 3,912.11, 5,867.65 and 1,936.98 is: 2,905.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,912.11 : 5,867.65 = 1,936.98 : x
  2. Step 2: Convert to fraction form
    3,912.11/5,867.65 = 1,936.98/x
  3. Step 3: Cross multiply
    3,912.11x = 5,867.65 × 1,936.98
  4. Step 4: Simplify right side
    3,912.11x = 11,365,501.09
  5. Step 5: Solve for x
    x = 11,365,501.09/3,912.11
  6. Step 6: Final answer
    x = 2,905.21

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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.