Home / 1,474.12-2,212.49-1,107.79

Finding the Fourth Proportional to 1,474.12, 2,212.49 and 1,107.79

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Solution

The fourth proportional to 1,474.12, 2,212.49 and 1,107.79 is: 1,662.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,474.12 : 2,212.49 = 1,107.79 : x
  2. Step 2: Convert to fraction form
    1,474.12/2,212.49 = 1,107.79/x
  3. Step 3: Cross multiply
    1,474.12x = 2,212.49 × 1,107.79
  4. Step 4: Simplify right side
    1,474.12x = 2,450,957.70
  5. Step 5: Solve for x
    x = 2,450,957.70/1,474.12
  6. Step 6: Final answer
    x = 1,662.66

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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.