Home / 1,758.26-2,631.92-1,296.56

Finding the Fourth Proportional to 1,758.26, 2,631.92 and 1,296.56

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Solution

The fourth proportional to 1,758.26, 2,631.92 and 1,296.56 is: 1,940.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,758.26 : 2,631.92 = 1,296.56 : x
  2. Step 2: Convert to fraction form
    1,758.26/2,631.92 = 1,296.56/x
  3. Step 3: Cross multiply
    1,758.26x = 2,631.92 × 1,296.56
  4. Step 4: Simplify right side
    1,758.26x = 3,412,422.55
  5. Step 5: Solve for x
    x = 3,412,422.55/1,758.26
  6. Step 6: Final answer
    x = 1,940.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.