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Finding the Fourth Proportional to 6,729.99, 9,287.15 and 3,745.95

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Solution

The fourth proportional to 6,729.99, 9,287.15 and 3,745.95 is: 5,169.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,729.99 : 9,287.15 = 3,745.95 : x
  2. Step 2: Convert to fraction form
    6,729.99/9,287.15 = 3,745.95/x
  3. Step 3: Cross multiply
    6,729.99x = 9,287.15 × 3,745.95
  4. Step 4: Simplify right side
    6,729.99x = 34,789,180.81
  5. Step 5: Solve for x
    x = 34,789,180.81/6,729.99
  6. Step 6: Final answer
    x = 5,169.28

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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.