Home / 5,455.98-8,183.16-1,993.23

Finding the Fourth Proportional to 5,455.98, 8,183.16 and 1,993.23

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Solution

The fourth proportional to 5,455.98, 8,183.16 and 1,993.23 is: 2,989.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,455.98 : 8,183.16 = 1,993.23 : x
  2. Step 2: Convert to fraction form
    5,455.98/8,183.16 = 1,993.23/x
  3. Step 3: Cross multiply
    5,455.98x = 8,183.16 × 1,993.23
  4. Step 4: Simplify right side
    5,455.98x = 16,310,920.01
  5. Step 5: Solve for x
    x = 16,310,920.01/5,455.98
  6. Step 6: Final answer
    x = 2,989.55

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Half scale
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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.