Home / 3,059.20-4,221.76-1,661.96

Finding the Fourth Proportional to 3,059.20, 4,221.76 and 1,661.96

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Solution

The fourth proportional to 3,059.20, 4,221.76 and 1,661.96 is: 2,293.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,059.20 : 4,221.76 = 1,661.96 : x
  2. Step 2: Convert to fraction form
    3,059.20/4,221.76 = 1,661.96/x
  3. Step 3: Cross multiply
    3,059.20x = 4,221.76 × 1,661.96
  4. Step 4: Simplify right side
    3,059.20x = 7,016,396.25
  5. Step 5: Solve for x
    x = 7,016,396.25/3,059.20
  6. Step 6: Final answer
    x = 2,293.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.