Home / 3,405.32-5,105.82-1,456.36

Finding the Fourth Proportional to 3,405.32, 5,105.82 and 1,456.36

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Solution

The fourth proportional to 3,405.32, 5,105.82 and 1,456.36 is: 2,183.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,405.32 : 5,105.82 = 1,456.36 : x
  2. Step 2: Convert to fraction form
    3,405.32/5,105.82 = 1,456.36/x
  3. Step 3: Cross multiply
    3,405.32x = 5,105.82 × 1,456.36
  4. Step 4: Simplify right side
    3,405.32x = 7,435,912.02
  5. Step 5: Solve for x
    x = 7,435,912.02/3,405.32
  6. Step 6: Final answer
    x = 2,183.62

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.