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Finding the Fourth Proportional to 7,205.98, 10,805.28 and 3,307

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Solution

The fourth proportional to 7,205.98, 10,805.28 and 3,307 is: 4,958.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,205.98 : 10,805.28 = 3,307 : x
  2. Step 2: Convert to fraction form
    7,205.98/10,805.28 = 3,307/x
  3. Step 3: Cross multiply
    7,205.98x = 10,805.28 × 3,307
  4. Step 4: Simplify right side
    7,205.98x = 35,733,060.96
  5. Step 5: Solve for x
    x = 35,733,060.96/7,205.98
  6. Step 6: Final answer
    x = 4,958.81

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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.