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Finding the Fourth Proportional to 3,960.39, 5,936.94 and 1,881.38

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Solution

The fourth proportional to 3,960.39, 5,936.94 and 1,881.38 is: 2,820.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,960.39 : 5,936.94 = 1,881.38 : x
  2. Step 2: Convert to fraction form
    3,960.39/5,936.94 = 1,881.38/x
  3. Step 3: Cross multiply
    3,960.39x = 5,936.94 × 1,881.38
  4. Step 4: Simplify right side
    3,960.39x = 11,169,655.02
  5. Step 5: Solve for x
    x = 11,169,655.02/3,960.39
  6. Step 6: Final answer
    x = 2,820.34

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1.5x scale

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.