Home / 5,455.53-8,183.24-1,992.75

Finding the Fourth Proportional to 5,455.53, 8,183.24 and 1,992.75

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Solution

The fourth proportional to 5,455.53, 8,183.24 and 1,992.75 is: 2,989.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,455.53 : 8,183.24 = 1,992.75 : x
  2. Step 2: Convert to fraction form
    5,455.53/8,183.24 = 1,992.75/x
  3. Step 3: Cross multiply
    5,455.53x = 8,183.24 × 1,992.75
  4. Step 4: Simplify right side
    5,455.53x = 16,307,141.55
  5. Step 5: Solve for x
    x = 16,307,141.55/5,455.53
  6. Step 6: Final answer
    x = 2,989.10

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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.