Home / 2,189.26-3,020.82-1,244.80

Finding the Fourth Proportional to 2,189.26, 3,020.82 and 1,244.80

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Solution

The fourth proportional to 2,189.26, 3,020.82 and 1,244.80 is: 1,717.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,189.26 : 3,020.82 = 1,244.80 : x
  2. Step 2: Convert to fraction form
    2,189.26/3,020.82 = 1,244.80/x
  3. Step 3: Cross multiply
    2,189.26x = 3,020.82 × 1,244.80
  4. Step 4: Simplify right side
    2,189.26x = 3,760,316.74
  5. Step 5: Solve for x
    x = 3,760,316.74/2,189.26
  6. Step 6: Final answer
    x = 1,717.62

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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.