Home / 1,912.19-2,855.34-1,517.77

Finding the Fourth Proportional to 1,912.19, 2,855.34 and 1,517.77

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Solution

The fourth proportional to 1,912.19, 2,855.34 and 1,517.77 is: 2,266.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,912.19 : 2,855.34 = 1,517.77 : x
  2. Step 2: Convert to fraction form
    1,912.19/2,855.34 = 1,517.77/x
  3. Step 3: Cross multiply
    1,912.19x = 2,855.34 × 1,517.77
  4. Step 4: Simplify right side
    1,912.19x = 4,333,736.56
  5. Step 5: Solve for x
    x = 4,333,736.56/1,912.19
  6. Step 6: Final answer
    x = 2,266.37

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.