Home / 2,609.15-3,909.47-2,198.07

Finding the Fourth Proportional to 2,609.15, 3,909.47 and 2,198.07

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Solution

The fourth proportional to 2,609.15, 3,909.47 and 2,198.07 is: 3,293.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,609.15 : 3,909.47 = 2,198.07 : x
  2. Step 2: Convert to fraction form
    2,609.15/3,909.47 = 2,198.07/x
  3. Step 3: Cross multiply
    2,609.15x = 3,909.47 × 2,198.07
  4. Step 4: Simplify right side
    2,609.15x = 8,593,277.73
  5. Step 5: Solve for x
    x = 8,593,277.73/2,609.15
  6. Step 6: Final answer
    x = 3,293.52

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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.