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Finding the Fourth Proportional to 5,836.61, 8,750.79 and 2,912.85

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Solution

The fourth proportional to 5,836.61, 8,750.79 and 2,912.85 is: 4,367.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,836.61 : 8,750.79 = 2,912.85 : x
  2. Step 2: Convert to fraction form
    5,836.61/8,750.79 = 2,912.85/x
  3. Step 3: Cross multiply
    5,836.61x = 8,750.79 × 2,912.85
  4. Step 4: Simplify right side
    5,836.61x = 25,489,738.65
  5. Step 5: Solve for x
    x = 25,489,738.65/5,836.61
  6. Step 6: Final answer
    x = 4,367.22

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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.