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Finding the Fourth Proportional to 6,850, 10,275.28 and 3,926.96

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Solution

The fourth proportional to 6,850, 10,275.28 and 3,926.96 is: 5,890.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,850 : 10,275.28 = 3,926.96 : x
  2. Step 2: Convert to fraction form
    6,850/10,275.28 = 3,926.96/x
  3. Step 3: Cross multiply
    6,850x = 10,275.28 × 3,926.96
  4. Step 4: Simplify right side
    6,850x = 40,350,613.55
  5. Step 5: Solve for x
    x = 40,350,613.55/6,850
  6. Step 6: Final answer
    x = 5,890.60

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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.