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Finding the Fourth Proportional to 6,750.78, 9,316.29 and 3,766.98

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Solution

The fourth proportional to 6,750.78, 9,316.29 and 3,766.98 is: 5,198.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,750.78 : 9,316.29 = 3,766.98 : x
  2. Step 2: Convert to fraction form
    6,750.78/9,316.29 = 3,766.98/x
  3. Step 3: Cross multiply
    6,750.78x = 9,316.29 × 3,766.98
  4. Step 4: Simplify right side
    6,750.78x = 35,094,278.10
  5. Step 5: Solve for x
    x = 35,094,278.10/6,750.78
  6. Step 6: Final answer
    x = 5,198.55

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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.