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Finding the Fourth Proportional to 6,620.06, 9,933.74 and 3,157.31

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Solution

The fourth proportional to 6,620.06, 9,933.74 and 3,157.31 is: 4,737.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,620.06 : 9,933.74 = 3,157.31 : x
  2. Step 2: Convert to fraction form
    6,620.06/9,933.74 = 3,157.31/x
  3. Step 3: Cross multiply
    6,620.06x = 9,933.74 × 3,157.31
  4. Step 4: Simplify right side
    6,620.06x = 31,363,917.53
  5. Step 5: Solve for x
    x = 31,363,917.53/6,620.06
  6. Step 6: Final answer
    x = 4,737.71

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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.