Home / 3,912.15-5,864.10-2,431.38

Finding the Fourth Proportional to 3,912.15, 5,864.10 and 2,431.38

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Solution

The fourth proportional to 3,912.15, 5,864.10 and 2,431.38 is: 3,644.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,912.15 : 5,864.10 = 2,431.38 : x
  2. Step 2: Convert to fraction form
    3,912.15/5,864.10 = 2,431.38/x
  3. Step 3: Cross multiply
    3,912.15x = 5,864.10 × 2,431.38
  4. Step 4: Simplify right side
    3,912.15x = 14,257,855.46
  5. Step 5: Solve for x
    x = 14,257,855.46/3,912.15
  6. Step 6: Final answer
    x = 3,644.51

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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.