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Finding the Fourth Proportional to 6,745.95, 9,309.19 and 4,229.43

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Solution

The fourth proportional to 6,745.95, 9,309.19 and 4,229.43 is: 5,836.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,745.95 : 9,309.19 = 4,229.43 : x
  2. Step 2: Convert to fraction form
    6,745.95/9,309.19 = 4,229.43/x
  3. Step 3: Cross multiply
    6,745.95x = 9,309.19 × 4,229.43
  4. Step 4: Simplify right side
    6,745.95x = 39,372,567.46
  5. Step 5: Solve for x
    x = 39,372,567.46/6,745.95
  6. Step 6: Final answer
    x = 5,836.47

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1.5x scale

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.