Home / 2,685.11-4,029.48-2,664.65

Finding the Fourth Proportional to 2,685.11, 4,029.48 and 2,664.65

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Solution

The fourth proportional to 2,685.11, 4,029.48 and 2,664.65 is: 3,998.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,685.11 : 4,029.48 = 2,664.65 : x
  2. Step 2: Convert to fraction form
    2,685.11/4,029.48 = 2,664.65/x
  3. Step 3: Cross multiply
    2,685.11x = 4,029.48 × 2,664.65
  4. Step 4: Simplify right side
    2,685.11x = 10,737,163.96
  5. Step 5: Solve for x
    x = 10,737,163.96/2,685.11
  6. Step 6: Final answer
    x = 3,998.79

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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.