Home / 5,179.76-7,771.80-3,330.32

Finding the Fourth Proportional to 5,179.76, 7,771.80 and 3,330.32

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Solution

The fourth proportional to 5,179.76, 7,771.80 and 3,330.32 is: 4,996.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,179.76 : 7,771.80 = 3,330.32 : x
  2. Step 2: Convert to fraction form
    5,179.76/7,771.80 = 3,330.32/x
  3. Step 3: Cross multiply
    5,179.76x = 7,771.80 × 3,330.32
  4. Step 4: Simplify right side
    5,179.76x = 25,882,580.98
  5. Step 5: Solve for x
    x = 25,882,580.98/5,179.76
  6. Step 6: Final answer
    x = 4,996.87

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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.