Home / 3,968.78-5,966.66-3,243.62

Finding the Fourth Proportional to 3,968.78, 5,966.66 and 3,243.62

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Solution

The fourth proportional to 3,968.78, 5,966.66 and 3,243.62 is: 4,876.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,968.78 : 5,966.66 = 3,243.62 : x
  2. Step 2: Convert to fraction form
    3,968.78/5,966.66 = 3,243.62/x
  3. Step 3: Cross multiply
    3,968.78x = 5,966.66 × 3,243.62
  4. Step 4: Simplify right side
    3,968.78x = 19,353,555.98
  5. Step 5: Solve for x
    x = 19,353,555.98/3,968.78
  6. Step 6: Final answer
    x = 4,876.46

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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.