Home / 6,644.56-9,169.08-3,991.36

Finding the Fourth Proportional to 6,644.56, 9,169.08 and 3,991.36

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Solution

The fourth proportional to 6,644.56, 9,169.08 and 3,991.36 is: 5,507.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,644.56 : 9,169.08 = 3,991.36 : x
  2. Step 2: Convert to fraction form
    6,644.56/9,169.08 = 3,991.36/x
  3. Step 3: Cross multiply
    6,644.56x = 9,169.08 × 3,991.36
  4. Step 4: Simplify right side
    6,644.56x = 36,597,099.15
  5. Step 5: Solve for x
    x = 36,597,099.15/6,644.56
  6. Step 6: Final answer
    x = 5,507.83

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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.