Home / 2,772.88-4,160.14-1,107.19

Finding the Fourth Proportional to 2,772.88, 4,160.14 and 1,107.19

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Solution

The fourth proportional to 2,772.88, 4,160.14 and 1,107.19 is: 1,661.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,772.88 : 4,160.14 = 1,107.19 : x
  2. Step 2: Convert to fraction form
    2,772.88/4,160.14 = 1,107.19/x
  3. Step 3: Cross multiply
    2,772.88x = 4,160.14 × 1,107.19
  4. Step 4: Simplify right side
    2,772.88x = 4,606,067.84
  5. Step 5: Solve for x
    x = 4,606,067.84/2,772.88
  6. Step 6: Final answer
    x = 1,661.11

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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.