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Finding the Fourth Proportional to 3,996.16, 5,994.24 and 1,399.84

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Solution

The fourth proportional to 3,996.16, 5,994.24 and 1,399.84 is: 2,099.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,996.16 : 5,994.24 = 1,399.84 : x
  2. Step 2: Convert to fraction form
    3,996.16/5,994.24 = 1,399.84/x
  3. Step 3: Cross multiply
    3,996.16x = 5,994.24 × 1,399.84
  4. Step 4: Simplify right side
    3,996.16x = 8,390,976.92
  5. Step 5: Solve for x
    x = 8,390,976.92/3,996.16
  6. Step 6: Final answer
    x = 2,099.76

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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.