Home / 3,912.23-5,868.90-1,138.53

Finding the Fourth Proportional to 3,912.23, 5,868.90 and 1,138.53

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Solution

The fourth proportional to 3,912.23, 5,868.90 and 1,138.53 is: 1,707.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,912.23 : 5,868.90 = 1,138.53 : x
  2. Step 2: Convert to fraction form
    3,912.23/5,868.90 = 1,138.53/x
  3. Step 3: Cross multiply
    3,912.23x = 5,868.90 × 1,138.53
  4. Step 4: Simplify right side
    3,912.23x = 6,681,918.72
  5. Step 5: Solve for x
    x = 6,681,918.72/3,912.23
  6. Step 6: Final answer
    x = 1,707.96

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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.