Home / 3,171.20-4,375.68-1,844.60

Finding the Fourth Proportional to 3,171.20, 4,375.68 and 1,844.60

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Solution

The fourth proportional to 3,171.20, 4,375.68 and 1,844.60 is: 2,545.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,171.20 : 4,375.68 = 1,844.60 : x
  2. Step 2: Convert to fraction form
    3,171.20/4,375.68 = 1,844.60/x
  3. Step 3: Cross multiply
    3,171.20x = 4,375.68 × 1,844.60
  4. Step 4: Simplify right side
    3,171.20x = 8,071,379.33
  5. Step 5: Solve for x
    x = 8,071,379.33/3,171.20
  6. Step 6: Final answer
    x = 2,545.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.