Home / 6,768.30-10,148.40-3,487.80

Finding the Fourth Proportional to 6,768.30, 10,148.40 and 3,487.80

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Solution

The fourth proportional to 6,768.30, 10,148.40 and 3,487.80 is: 5,229.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,768.30 : 10,148.40 = 3,487.80 : x
  2. Step 2: Convert to fraction form
    6,768.30/10,148.40 = 3,487.80/x
  3. Step 3: Cross multiply
    6,768.30x = 10,148.40 × 3,487.80
  4. Step 4: Simplify right side
    6,768.30x = 35,395,589.52
  5. Step 5: Solve for x
    x = 35,395,589.52/6,768.30
  6. Step 6: Final answer
    x = 5,229.61

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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.