Home / 7,085.88-10,628.82-3,185.73

Finding the Fourth Proportional to 7,085.88, 10,628.82 and 3,185.73

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Solution

The fourth proportional to 7,085.88, 10,628.82 and 3,185.73 is: 4,778.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,085.88 : 10,628.82 = 3,185.73 : x
  2. Step 2: Convert to fraction form
    7,085.88/10,628.82 = 3,185.73/x
  3. Step 3: Cross multiply
    7,085.88x = 10,628.82 × 3,185.73
  4. Step 4: Simplify right side
    7,085.88x = 33,860,550.74
  5. Step 5: Solve for x
    x = 33,860,550.74/7,085.88
  6. Step 6: Final answer
    x = 4,778.60

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Similar ratio
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1.5x scale

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.