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Finding the Fourth Proportional to 3,828.90, 5,744.02 and 1,363.66

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Solution

The fourth proportional to 3,828.90, 5,744.02 and 1,363.66 is: 2,045.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,828.90 : 5,744.02 = 1,363.66 : x
  2. Step 2: Convert to fraction form
    3,828.90/5,744.02 = 1,363.66/x
  3. Step 3: Cross multiply
    3,828.90x = 5,744.02 × 1,363.66
  4. Step 4: Simplify right side
    3,828.90x = 7,832,890.31
  5. Step 5: Solve for x
    x = 7,832,890.31/3,828.90
  6. Step 6: Final answer
    x = 2,045.73

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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.