Home / 2,220.72-3,329.08-1,179.96

Finding the Fourth Proportional to 2,220.72, 3,329.08 and 1,179.96

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Solution

The fourth proportional to 2,220.72, 3,329.08 and 1,179.96 is: 1,768.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,220.72 : 3,329.08 = 1,179.96 : x
  2. Step 2: Convert to fraction form
    2,220.72/3,329.08 = 1,179.96/x
  3. Step 3: Cross multiply
    2,220.72x = 3,329.08 × 1,179.96
  4. Step 4: Simplify right side
    2,220.72x = 3,928,181.24
  5. Step 5: Solve for x
    x = 3,928,181.24/2,220.72
  6. Step 6: Final answer
    x = 1,768.88

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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.