Home / 3,861.14-5,791.98-1,912.82

Finding the Fourth Proportional to 3,861.14, 5,791.98 and 1,912.82

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Solution

The fourth proportional to 3,861.14, 5,791.98 and 1,912.82 is: 2,869.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,861.14 : 5,791.98 = 1,912.82 : x
  2. Step 2: Convert to fraction form
    3,861.14/5,791.98 = 1,912.82/x
  3. Step 3: Cross multiply
    3,861.14x = 5,791.98 × 1,912.82
  4. Step 4: Simplify right side
    3,861.14x = 11,079,015.18
  5. Step 5: Solve for x
    x = 11,079,015.18/3,861.14
  6. Step 6: Final answer
    x = 2,869.36

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1.5x scale

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.