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Finding the Fourth Proportional to 6,659.16, 9,991.62 and 3,577.56

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Solution

The fourth proportional to 6,659.16, 9,991.62 and 3,577.56 is: 5,367.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,659.16 : 9,991.62 = 3,577.56 : x
  2. Step 2: Convert to fraction form
    6,659.16/9,991.62 = 3,577.56/x
  3. Step 3: Cross multiply
    6,659.16x = 9,991.62 × 3,577.56
  4. Step 4: Simplify right side
    6,659.16x = 35,745,620.05
  5. Step 5: Solve for x
    x = 35,745,620.05/6,659.16
  6. Step 6: Final answer
    x = 5,367.89

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1.5x scale

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.