Home / 3,299.72-4,949.96-1,077.78

Finding the Fourth Proportional to 3,299.72, 4,949.96 and 1,077.78

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Solution

The fourth proportional to 3,299.72, 4,949.96 and 1,077.78 is: 1,616.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,299.72 : 4,949.96 = 1,077.78 : x
  2. Step 2: Convert to fraction form
    3,299.72/4,949.96 = 1,077.78/x
  3. Step 3: Cross multiply
    3,299.72x = 4,949.96 × 1,077.78
  4. Step 4: Simplify right side
    3,299.72x = 5,334,967.89
  5. Step 5: Solve for x
    x = 5,334,967.89/3,299.72
  6. Step 6: Final answer
    x = 1,616.79

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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.