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Finding the Fourth Proportional to 7,203.15, 10,801.98 and 2,819.61

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Solution

The fourth proportional to 7,203.15, 10,801.98 and 2,819.61 is: 4,228.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,203.15 : 10,801.98 = 2,819.61 : x
  2. Step 2: Convert to fraction form
    7,203.15/10,801.98 = 2,819.61/x
  3. Step 3: Cross multiply
    7,203.15x = 10,801.98 × 2,819.61
  4. Step 4: Simplify right side
    7,203.15x = 30,457,370.83
  5. Step 5: Solve for x
    x = 30,457,370.83/7,203.15
  6. Step 6: Final answer
    x = 4,228.34

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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.