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Finding the Fourth Proportional to 3,838.84, 5,758.30 and 1,241.80

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Solution

The fourth proportional to 3,838.84, 5,758.30 and 1,241.80 is: 1,862.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,838.84 : 5,758.30 = 1,241.80 : x
  2. Step 2: Convert to fraction form
    3,838.84/5,758.30 = 1,241.80/x
  3. Step 3: Cross multiply
    3,838.84x = 5,758.30 × 1,241.80
  4. Step 4: Simplify right side
    3,838.84x = 7,150,656.94
  5. Step 5: Solve for x
    x = 7,150,656.94/3,838.84
  6. Step 6: Final answer
    x = 1,862.71

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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.