Home / 1,743.94-2,406.33-1,279.30

Finding the Fourth Proportional to 1,743.94, 2,406.33 and 1,279.30

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Solution

The fourth proportional to 1,743.94, 2,406.33 and 1,279.30 is: 1,765.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,743.94 : 2,406.33 = 1,279.30 : x
  2. Step 2: Convert to fraction form
    1,743.94/2,406.33 = 1,279.30/x
  3. Step 3: Cross multiply
    1,743.94x = 2,406.33 × 1,279.30
  4. Step 4: Simplify right side
    1,743.94x = 3,078,417.97
  5. Step 5: Solve for x
    x = 3,078,417.97/1,743.94
  6. Step 6: Final answer
    x = 1,765.21

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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.