Home / 3,912.33-5,868.51-1,317.09

Finding the Fourth Proportional to 3,912.33, 5,868.51 and 1,317.09

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Solution

The fourth proportional to 3,912.33, 5,868.51 and 1,317.09 is: 1,975.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,912.33 : 5,868.51 = 1,317.09 : x
  2. Step 2: Convert to fraction form
    3,912.33/5,868.51 = 1,317.09/x
  3. Step 3: Cross multiply
    3,912.33x = 5,868.51 × 1,317.09
  4. Step 4: Simplify right side
    3,912.33x = 7,729,355.84
  5. Step 5: Solve for x
    x = 7,729,355.84/3,912.33
  6. Step 6: Final answer
    x = 1,975.64

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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.