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Finding the Fourth Proportional to 5,144.74, 7,719.27 and 3,296.86

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Solution

The fourth proportional to 5,144.74, 7,719.27 and 3,296.86 is: 4,946.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,144.74 : 7,719.27 = 3,296.86 : x
  2. Step 2: Convert to fraction form
    5,144.74/7,719.27 = 3,296.86/x
  3. Step 3: Cross multiply
    5,144.74x = 7,719.27 × 3,296.86
  4. Step 4: Simplify right side
    5,144.74x = 25,449,352.49
  5. Step 5: Solve for x
    x = 25,449,352.49/5,144.74
  6. Step 6: Final answer
    x = 4,946.67

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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.