Home / 3,912.51-5,861.19-2,175.87

Finding the Fourth Proportional to 3,912.51, 5,861.19 and 2,175.87

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Solution

The fourth proportional to 3,912.51, 5,861.19 and 2,175.87 is: 3,259.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,912.51 : 5,861.19 = 2,175.87 : x
  2. Step 2: Convert to fraction form
    3,912.51/5,861.19 = 2,175.87/x
  3. Step 3: Cross multiply
    3,912.51x = 5,861.19 × 2,175.87
  4. Step 4: Simplify right side
    3,912.51x = 12,753,187.49
  5. Step 5: Solve for x
    x = 12,753,187.49/3,912.51
  6. Step 6: Final answer
    x = 3,259.59

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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.