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Finding the Fourth Proportional to 5,889.57, 8,121.36 and 4,819.29

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Solution

The fourth proportional to 5,889.57, 8,121.36 and 4,819.29 is: 6,645.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,889.57 : 8,121.36 = 4,819.29 : x
  2. Step 2: Convert to fraction form
    5,889.57/8,121.36 = 4,819.29/x
  3. Step 3: Cross multiply
    5,889.57x = 8,121.36 × 4,819.29
  4. Step 4: Simplify right side
    5,889.57x = 39,139,189.03
  5. Step 5: Solve for x
    x = 39,139,189.03/5,889.57
  6. Step 6: Final answer
    x = 6,645.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.