Home / 3,171.08-4,375.85-1,773.56

Finding the Fourth Proportional to 3,171.08, 4,375.85 and 1,773.56

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Solution

The fourth proportional to 3,171.08, 4,375.85 and 1,773.56 is: 2,447.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,171.08 : 4,375.85 = 1,773.56 : x
  2. Step 2: Convert to fraction form
    3,171.08/4,375.85 = 1,773.56/x
  3. Step 3: Cross multiply
    3,171.08x = 4,375.85 × 1,773.56
  4. Step 4: Simplify right side
    3,171.08x = 7,760,834.60
  5. Step 5: Solve for x
    x = 7,760,834.60/3,171.08
  6. Step 6: Final answer
    x = 2,447.38

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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.