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Finding the Fourth Proportional to 7,203.65, 10,801.16 and 2,815.88

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Solution

The fourth proportional to 7,203.65, 10,801.16 and 2,815.88 is: 4,222.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,203.65 : 10,801.16 = 2,815.88 : x
  2. Step 2: Convert to fraction form
    7,203.65/10,801.16 = 2,815.88/x
  3. Step 3: Cross multiply
    7,203.65x = 10,801.16 × 2,815.88
  4. Step 4: Simplify right side
    7,203.65x = 30,414,756.34
  5. Step 5: Solve for x
    x = 30,414,756.34/7,203.65
  6. Step 6: Final answer
    x = 4,222.13

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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.