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Finding the Fourth Proportional to 6,668.44, 9,201.78 and 4,015.42

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Solution

The fourth proportional to 6,668.44, 9,201.78 and 4,015.42 is: 5,540.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,668.44 : 9,201.78 = 4,015.42 : x
  2. Step 2: Convert to fraction form
    6,668.44/9,201.78 = 4,015.42/x
  3. Step 3: Cross multiply
    6,668.44x = 9,201.78 × 4,015.42
  4. Step 4: Simplify right side
    6,668.44x = 36,949,011.45
  5. Step 5: Solve for x
    x = 36,949,011.45/6,668.44
  6. Step 6: Final answer
    x = 5,540.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.