Home / 6,469.94-9,688.97-3,689.75

Finding the Fourth Proportional to 6,469.94, 9,688.97 and 3,689.75

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Solution

The fourth proportional to 6,469.94, 9,688.97 and 3,689.75 is: 5,525.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,469.94 : 9,688.97 = 3,689.75 : x
  2. Step 2: Convert to fraction form
    6,469.94/9,688.97 = 3,689.75/x
  3. Step 3: Cross multiply
    6,469.94x = 9,688.97 × 3,689.75
  4. Step 4: Simplify right side
    6,469.94x = 35,749,877.06
  5. Step 5: Solve for x
    x = 35,749,877.06/6,469.94
  6. Step 6: Final answer
    x = 5,525.53

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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.