Home / 7,183.79-9,912.98-3,996.95

Finding the Fourth Proportional to 7,183.79, 9,912.98 and 3,996.95

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Solution

The fourth proportional to 7,183.79, 9,912.98 and 3,996.95 is: 5,515.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,183.79 : 9,912.98 = 3,996.95 : x
  2. Step 2: Convert to fraction form
    7,183.79/9,912.98 = 3,996.95/x
  3. Step 3: Cross multiply
    7,183.79x = 9,912.98 × 3,996.95
  4. Step 4: Simplify right side
    7,183.79x = 39,621,645.84
  5. Step 5: Solve for x
    x = 39,621,645.84/7,183.79
  6. Step 6: Final answer
    x = 5,515.42

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Double scale
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Similar ratio
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1.5x scale

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.