Home / 1,961.98-2,708.70-1,743.28

Finding the Fourth Proportional to 1,961.98, 2,708.70 and 1,743.28

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Solution

The fourth proportional to 1,961.98, 2,708.70 and 1,743.28 is: 2,406.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,961.98 : 2,708.70 = 1,743.28 : x
  2. Step 2: Convert to fraction form
    1,961.98/2,708.70 = 1,743.28/x
  3. Step 3: Cross multiply
    1,961.98x = 2,708.70 × 1,743.28
  4. Step 4: Simplify right side
    1,961.98x = 4,722,022.54
  5. Step 5: Solve for x
    x = 4,722,022.54/1,961.98
  6. Step 6: Final answer
    x = 2,406.76

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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.