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Finding the Fourth Proportional to 6,105.78, 9,159.28 and 2,819.82

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Solution

The fourth proportional to 6,105.78, 9,159.28 and 2,819.82 is: 4,230.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,105.78 : 9,159.28 = 2,819.82 : x
  2. Step 2: Convert to fraction form
    6,105.78/9,159.28 = 2,819.82/x
  3. Step 3: Cross multiply
    6,105.78x = 9,159.28 × 2,819.82
  4. Step 4: Simplify right side
    6,105.78x = 25,827,475.13
  5. Step 5: Solve for x
    x = 25,827,475.13/6,105.78
  6. Step 6: Final answer
    x = 4,230.00

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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.