Home / 1,619.43-2,231.82-1,264.80

Finding the Fourth Proportional to 1,619.43, 2,231.82 and 1,264.80

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Solution

The fourth proportional to 1,619.43, 2,231.82 and 1,264.80 is: 1,743.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,619.43 : 2,231.82 = 1,264.80 : x
  2. Step 2: Convert to fraction form
    1,619.43/2,231.82 = 1,264.80/x
  3. Step 3: Cross multiply
    1,619.43x = 2,231.82 × 1,264.80
  4. Step 4: Simplify right side
    1,619.43x = 2,822,805.94
  5. Step 5: Solve for x
    x = 2,822,805.94/1,619.43
  6. Step 6: Final answer
    x = 1,743.09

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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.