Home / 3,763.56-5,645.50-1,912.21

Finding the Fourth Proportional to 3,763.56, 5,645.50 and 1,912.21

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Solution

The fourth proportional to 3,763.56, 5,645.50 and 1,912.21 is: 2,868.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,763.56 : 5,645.50 = 1,912.21 : x
  2. Step 2: Convert to fraction form
    3,763.56/5,645.50 = 1,912.21/x
  3. Step 3: Cross multiply
    3,763.56x = 5,645.50 × 1,912.21
  4. Step 4: Simplify right side
    3,763.56x = 10,795,362.66
  5. Step 5: Solve for x
    x = 10,795,362.66/3,763.56
  6. Step 6: Final answer
    x = 2,868.39

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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.