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Finding the Fourth Proportional to 5,814.92, 8,721.92 and 1,866.57

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Solution

The fourth proportional to 5,814.92, 8,721.92 and 1,866.57 is: 2,799.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,814.92 : 8,721.92 = 1,866.57 : x
  2. Step 2: Convert to fraction form
    5,814.92/8,721.92 = 1,866.57/x
  3. Step 3: Cross multiply
    5,814.92x = 8,721.92 × 1,866.57
  4. Step 4: Simplify right side
    5,814.92x = 16,280,064.88
  5. Step 5: Solve for x
    x = 16,280,064.88/5,814.92
  6. Step 6: Final answer
    x = 2,799.71

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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.