Home / 3,781.12-5,671.62-1,183.98

Finding the Fourth Proportional to 3,781.12, 5,671.62 and 1,183.98

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Solution

The fourth proportional to 3,781.12, 5,671.62 and 1,183.98 is: 1,775.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,781.12 : 5,671.62 = 1,183.98 : x
  2. Step 2: Convert to fraction form
    3,781.12/5,671.62 = 1,183.98/x
  3. Step 3: Cross multiply
    3,781.12x = 5,671.62 × 1,183.98
  4. Step 4: Simplify right side
    3,781.12x = 6,715,084.65
  5. Step 5: Solve for x
    x = 6,715,084.65/3,781.12
  6. Step 6: Final answer
    x = 1,775.95

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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.