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Finding the Fourth Proportional to 4,873.50, 6,723 and 3,105

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Solution

The fourth proportional to 4,873.50, 6,723 and 3,105 is: 4,283.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,873.50 : 6,723 = 3,105 : x
  2. Step 2: Convert to fraction form
    4,873.50/6,723 = 3,105/x
  3. Step 3: Cross multiply
    4,873.50x = 6,723 × 3,105
  4. Step 4: Simplify right side
    4,873.50x = 20,874,915
  5. Step 5: Solve for x
    x = 20,874,915/4,873.50
  6. Step 6: Final answer
    x = 4,283.35

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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.