Home / 7,134.40-10,704.80-3,236.80

Finding the Fourth Proportional to 7,134.40, 10,704.80 and 3,236.80

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Solution

The fourth proportional to 7,134.40, 10,704.80 and 3,236.80 is: 4,856.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,134.40 : 10,704.80 = 3,236.80 : x
  2. Step 2: Convert to fraction form
    7,134.40/10,704.80 = 3,236.80/x
  3. Step 3: Cross multiply
    7,134.40x = 10,704.80 × 3,236.80
  4. Step 4: Simplify right side
    7,134.40x = 34,649,296.64
  5. Step 5: Solve for x
    x = 34,649,296.64/7,134.40
  6. Step 6: Final answer
    x = 4,856.65

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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.