Home / 3,930.84-5,896.85-2,081.48

Finding the Fourth Proportional to 3,930.84, 5,896.85 and 2,081.48

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Solution

The fourth proportional to 3,930.84, 5,896.85 and 2,081.48 is: 3,122.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,930.84 : 5,896.85 = 2,081.48 : x
  2. Step 2: Convert to fraction form
    3,930.84/5,896.85 = 2,081.48/x
  3. Step 3: Cross multiply
    3,930.84x = 5,896.85 × 2,081.48
  4. Step 4: Simplify right side
    3,930.84x = 12,274,135.45
  5. Step 5: Solve for x
    x = 12,274,135.45/3,930.84
  6. Step 6: Final answer
    x = 3,122.52

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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.