Home / 5,814.45-8,722.71-2,121.87

Finding the Fourth Proportional to 5,814.45, 8,722.71 and 2,121.87

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Solution

The fourth proportional to 5,814.45, 8,722.71 and 2,121.87 is: 3,183.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,814.45 : 8,722.71 = 2,121.87 : x
  2. Step 2: Convert to fraction form
    5,814.45/8,722.71 = 2,121.87/x
  3. Step 3: Cross multiply
    5,814.45x = 8,722.71 × 2,121.87
  4. Step 4: Simplify right side
    5,814.45x = 18,508,456.67
  5. Step 5: Solve for x
    x = 18,508,456.67/5,814.45
  6. Step 6: Final answer
    x = 3,183.18

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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.