Home / 2,148.25-3,222.75-1,107.97

Finding the Fourth Proportional to 2,148.25, 3,222.75 and 1,107.97

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Solution

The fourth proportional to 2,148.25, 3,222.75 and 1,107.97 is: 1,662.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,148.25 : 3,222.75 = 1,107.97 : x
  2. Step 2: Convert to fraction form
    2,148.25/3,222.75 = 1,107.97/x
  3. Step 3: Cross multiply
    2,148.25x = 3,222.75 × 1,107.97
  4. Step 4: Simplify right side
    2,148.25x = 3,570,694.20
  5. Step 5: Solve for x
    x = 3,570,694.20/2,148.25
  6. Step 6: Final answer
    x = 1,662.14

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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.