Home / 5,112.44-7,668.64-1,414.64

Finding the Fourth Proportional to 5,112.44, 7,668.64 and 1,414.64

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Solution

The fourth proportional to 5,112.44, 7,668.64 and 1,414.64 is: 2,121.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,112.44 : 7,668.64 = 1,414.64 : x
  2. Step 2: Convert to fraction form
    5,112.44/7,668.64 = 1,414.64/x
  3. Step 3: Cross multiply
    5,112.44x = 7,668.64 × 1,414.64
  4. Step 4: Simplify right side
    5,112.44x = 10,848,385.83
  5. Step 5: Solve for x
    x = 10,848,385.83/5,112.44
  6. Step 6: Final answer
    x = 2,121.96

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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.