Home / 3,455.92-5,183.79-1,147.42

Finding the Fourth Proportional to 3,455.92, 5,183.79 and 1,147.42

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Solution

The fourth proportional to 3,455.92, 5,183.79 and 1,147.42 is: 1,721.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,455.92 : 5,183.79 = 1,147.42 : x
  2. Step 2: Convert to fraction form
    3,455.92/5,183.79 = 1,147.42/x
  3. Step 3: Cross multiply
    3,455.92x = 5,183.79 × 1,147.42
  4. Step 4: Simplify right side
    3,455.92x = 5,947,984.32
  5. Step 5: Solve for x
    x = 5,947,984.32/3,455.92
  6. Step 6: Final answer
    x = 1,721.10

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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.