Home / 3,170.72-4,375.20-1,773.12

Finding the Fourth Proportional to 3,170.72, 4,375.20 and 1,773.12

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Solution

The fourth proportional to 3,170.72, 4,375.20 and 1,773.12 is: 2,446.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,170.72 : 4,375.20 = 1,773.12 : x
  2. Step 2: Convert to fraction form
    3,170.72/4,375.20 = 1,773.12/x
  3. Step 3: Cross multiply
    3,170.72x = 4,375.20 × 1,773.12
  4. Step 4: Simplify right side
    3,170.72x = 7,757,754.62
  5. Step 5: Solve for x
    x = 7,757,754.62/3,170.72
  6. Step 6: Final answer
    x = 2,446.69

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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.