Home / 6,749.75-10,120.20-3,239.66

Finding the Fourth Proportional to 6,749.75, 10,120.20 and 3,239.66

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Solution

The fourth proportional to 6,749.75, 10,120.20 and 3,239.66 is: 4,857.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,749.75 : 10,120.20 = 3,239.66 : x
  2. Step 2: Convert to fraction form
    6,749.75/10,120.20 = 3,239.66/x
  3. Step 3: Cross multiply
    6,749.75x = 10,120.20 × 3,239.66
  4. Step 4: Simplify right side
    6,749.75x = 32,785,956.53
  5. Step 5: Solve for x
    x = 32,785,956.53/6,749.75
  6. Step 6: Final answer
    x = 4,857.36

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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.