Home / 6,647.22-9,171.90-3,993.66

Finding the Fourth Proportional to 6,647.22, 9,171.90 and 3,993.66

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Solution

The fourth proportional to 6,647.22, 9,171.90 and 3,993.66 is: 5,510.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,647.22 : 9,171.90 = 3,993.66 : x
  2. Step 2: Convert to fraction form
    6,647.22/9,171.90 = 3,993.66/x
  3. Step 3: Cross multiply
    6,647.22x = 9,171.90 × 3,993.66
  4. Step 4: Simplify right side
    6,647.22x = 36,629,450.15
  5. Step 5: Solve for x
    x = 36,629,450.15/6,647.22
  6. Step 6: Final answer
    x = 5,510.49

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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.