Home / 2,628.75-3,940.47-1,704.89

Finding the Fourth Proportional to 2,628.75, 3,940.47 and 1,704.89

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Solution

The fourth proportional to 2,628.75, 3,940.47 and 1,704.89 is: 2,555.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,628.75 : 3,940.47 = 1,704.89 : x
  2. Step 2: Convert to fraction form
    2,628.75/3,940.47 = 1,704.89/x
  3. Step 3: Cross multiply
    2,628.75x = 3,940.47 × 1,704.89
  4. Step 4: Simplify right side
    2,628.75x = 6,718,067.90
  5. Step 5: Solve for x
    x = 6,718,067.90/2,628.75
  6. Step 6: Final answer
    x = 2,555.61

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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.