Home / 3,939.16-5,908.65-3,418.33

Finding the Fourth Proportional to 3,939.16, 5,908.65 and 3,418.33

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Solution

The fourth proportional to 3,939.16, 5,908.65 and 3,418.33 is: 5,127.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,939.16 : 5,908.65 = 3,418.33 : x
  2. Step 2: Convert to fraction form
    3,939.16/5,908.65 = 3,418.33/x
  3. Step 3: Cross multiply
    3,939.16x = 5,908.65 × 3,418.33
  4. Step 4: Simplify right side
    3,939.16x = 20,197,715.55
  5. Step 5: Solve for x
    x = 20,197,715.55/3,939.16
  6. Step 6: Final answer
    x = 5,127.42

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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.