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Finding the Fourth Proportional to 7,953, 11,933.84 and 3,849

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Solution

The fourth proportional to 7,953, 11,933.84 and 3,849 is: 5,775.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,953 : 11,933.84 = 3,849 : x
  2. Step 2: Convert to fraction form
    7,953/11,933.84 = 3,849/x
  3. Step 3: Cross multiply
    7,953x = 11,933.84 × 3,849
  4. Step 4: Simplify right side
    7,953x = 45,933,350.16
  5. Step 5: Solve for x
    x = 45,933,350.16/7,953
  6. Step 6: Final answer
    x = 5,775.60

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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.