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Finding the Fourth Proportional to 6,620.82, 9,933.39 and 3,157.62

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Solution

The fourth proportional to 6,620.82, 9,933.39 and 3,157.62 is: 4,737.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,620.82 : 9,933.39 = 3,157.62 : x
  2. Step 2: Convert to fraction form
    6,620.82/9,933.39 = 3,157.62/x
  3. Step 3: Cross multiply
    6,620.82x = 9,933.39 × 3,157.62
  4. Step 4: Simplify right side
    6,620.82x = 31,365,870.93
  5. Step 5: Solve for x
    x = 31,365,870.93/6,620.82
  6. Step 6: Final answer
    x = 4,737.46

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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.