Home / 3,912.39-5,399.04-2,144

Finding the Fourth Proportional to 3,912.39, 5,399.04 and 2,144

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Solution

The fourth proportional to 3,912.39, 5,399.04 and 2,144 is: 2,958.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,912.39 : 5,399.04 = 2,144 : x
  2. Step 2: Convert to fraction form
    3,912.39/5,399.04 = 2,144/x
  3. Step 3: Cross multiply
    3,912.39x = 5,399.04 × 2,144
  4. Step 4: Simplify right side
    3,912.39x = 11,575,541.76
  5. Step 5: Solve for x
    x = 11,575,541.76/3,912.39
  6. Step 6: Final answer
    x = 2,958.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.