Home / 2,006.09-2,768.35-1,121.97

Finding the Fourth Proportional to 2,006.09, 2,768.35 and 1,121.97

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Solution

The fourth proportional to 2,006.09, 2,768.35 and 1,121.97 is: 1,548.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,006.09 : 2,768.35 = 1,121.97 : x
  2. Step 2: Convert to fraction form
    2,006.09/2,768.35 = 1,121.97/x
  3. Step 3: Cross multiply
    2,006.09x = 2,768.35 × 1,121.97
  4. Step 4: Simplify right side
    2,006.09x = 3,106,005.65
  5. Step 5: Solve for x
    x = 3,106,005.65/2,006.09
  6. Step 6: Final answer
    x = 1,548.29

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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.