Home / 2,512.80-3,467.87-1,394.09

Finding the Fourth Proportional to 2,512.80, 3,467.87 and 1,394.09

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Solution

The fourth proportional to 2,512.80, 3,467.87 and 1,394.09 is: 1,923.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,512.80 : 3,467.87 = 1,394.09 : x
  2. Step 2: Convert to fraction form
    2,512.80/3,467.87 = 1,394.09/x
  3. Step 3: Cross multiply
    2,512.80x = 3,467.87 × 1,394.09
  4. Step 4: Simplify right side
    2,512.80x = 4,834,498.58
  5. Step 5: Solve for x
    x = 4,834,498.58/2,512.80
  6. Step 6: Final answer
    x = 1,923.95

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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.