Home / 2,528.80-3,786.66-1,296.79

Finding the Fourth Proportional to 2,528.80, 3,786.66 and 1,296.79

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Solution

The fourth proportional to 2,528.80, 3,786.66 and 1,296.79 is: 1,941.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,528.80 : 3,786.66 = 1,296.79 : x
  2. Step 2: Convert to fraction form
    2,528.80/3,786.66 = 1,296.79/x
  3. Step 3: Cross multiply
    2,528.80x = 3,786.66 × 1,296.79
  4. Step 4: Simplify right side
    2,528.80x = 4,910,493.35
  5. Step 5: Solve for x
    x = 4,910,493.35/2,528.80
  6. Step 6: Final answer
    x = 1,941.83

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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.