Home / 3,171.03-4,375.23-1,912.82

Finding the Fourth Proportional to 3,171.03, 4,375.23 and 1,912.82

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Solution

The fourth proportional to 3,171.03, 4,375.23 and 1,912.82 is: 2,639.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,171.03 : 4,375.23 = 1,912.82 : x
  2. Step 2: Convert to fraction form
    3,171.03/4,375.23 = 1,912.82/x
  3. Step 3: Cross multiply
    3,171.03x = 4,375.23 × 1,912.82
  4. Step 4: Simplify right side
    3,171.03x = 8,369,033.77
  5. Step 5: Solve for x
    x = 8,369,033.77/3,171.03
  6. Step 6: Final answer
    x = 2,639.22

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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.