Home / 3,909.58-5,394.92-2,207.98

Finding the Fourth Proportional to 3,909.58, 5,394.92 and 2,207.98

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Solution

The fourth proportional to 3,909.58, 5,394.92 and 2,207.98 is: 3,046.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,909.58 : 5,394.92 = 2,207.98 : x
  2. Step 2: Convert to fraction form
    3,909.58/5,394.92 = 2,207.98/x
  3. Step 3: Cross multiply
    3,909.58x = 5,394.92 × 2,207.98
  4. Step 4: Simplify right side
    3,909.58x = 11,911,867.49
  5. Step 5: Solve for x
    x = 11,911,867.49/3,909.58
  6. Step 6: Final answer
    x = 3,046.84

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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.