Home / 3,231.78-4,849.80-1,179.78

Finding the Fourth Proportional to 3,231.78, 4,849.80 and 1,179.78

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Solution

The fourth proportional to 3,231.78, 4,849.80 and 1,179.78 is: 1,770.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,231.78 : 4,849.80 = 1,179.78 : x
  2. Step 2: Convert to fraction form
    3,231.78/4,849.80 = 1,179.78/x
  3. Step 3: Cross multiply
    3,231.78x = 4,849.80 × 1,179.78
  4. Step 4: Simplify right side
    3,231.78x = 5,721,697.04
  5. Step 5: Solve for x
    x = 5,721,697.04/3,231.78
  6. Step 6: Final answer
    x = 1,770.45

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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.