Home / 6,103.78-8,423.19-3,309.28

Finding the Fourth Proportional to 6,103.78, 8,423.19 and 3,309.28

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Solution

The fourth proportional to 6,103.78, 8,423.19 and 3,309.28 is: 4,566.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,103.78 : 8,423.19 = 3,309.28 : x
  2. Step 2: Convert to fraction form
    6,103.78/8,423.19 = 3,309.28/x
  3. Step 3: Cross multiply
    6,103.78x = 8,423.19 × 3,309.28
  4. Step 4: Simplify right side
    6,103.78x = 27,874,694.20
  5. Step 5: Solve for x
    x = 27,874,694.20/6,103.78
  6. Step 6: Final answer
    x = 4,566.79

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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.