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Finding the Fourth Proportional to 6,662.99, 9,198.25 and 4,145.91

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Solution

The fourth proportional to 6,662.99, 9,198.25 and 4,145.91 is: 5,723.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,662.99 : 9,198.25 = 4,145.91 : x
  2. Step 2: Convert to fraction form
    6,662.99/9,198.25 = 4,145.91/x
  3. Step 3: Cross multiply
    6,662.99x = 9,198.25 × 4,145.91
  4. Step 4: Simplify right side
    6,662.99x = 38,135,116.66
  5. Step 5: Solve for x
    x = 38,135,116.66/6,662.99
  6. Step 6: Final answer
    x = 5,723.42

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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.