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Finding the Fourth Proportional to 5,780.09, 8,668.09 and 2,081.33

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Solution

The fourth proportional to 5,780.09, 8,668.09 and 2,081.33 is: 3,121.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,780.09 : 8,668.09 = 2,081.33 : x
  2. Step 2: Convert to fraction form
    5,780.09/8,668.09 = 2,081.33/x
  3. Step 3: Cross multiply
    5,780.09x = 8,668.09 × 2,081.33
  4. Step 4: Simplify right side
    5,780.09x = 18,041,102.01
  5. Step 5: Solve for x
    x = 18,041,102.01/5,780.09
  6. Step 6: Final answer
    x = 3,121.25

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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.