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Finding the Fourth Proportional to 3,968.83, 5,954.82 and 1,889.76

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Solution

The fourth proportional to 3,968.83, 5,954.82 and 1,889.76 is: 2,835.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,968.83 : 5,954.82 = 1,889.76 : x
  2. Step 2: Convert to fraction form
    3,968.83/5,954.82 = 1,889.76/x
  3. Step 3: Cross multiply
    3,968.83x = 5,954.82 × 1,889.76
  4. Step 4: Simplify right side
    3,968.83x = 11,253,195.89
  5. Step 5: Solve for x
    x = 11,253,195.89/3,968.83
  6. Step 6: Final answer
    x = 2,835.39

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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.