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Finding the Fourth Proportional to 6,641.50, 9,961.56 and 4,168.99

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Solution

The fourth proportional to 6,641.50, 9,961.56 and 4,168.99 is: 6,253.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,641.50 : 9,961.56 = 4,168.99 : x
  2. Step 2: Convert to fraction form
    6,641.50/9,961.56 = 4,168.99/x
  3. Step 3: Cross multiply
    6,641.50x = 9,961.56 × 4,168.99
  4. Step 4: Simplify right side
    6,641.50x = 41,529,644.02
  5. Step 5: Solve for x
    x = 41,529,644.02/6,641.50
  6. Step 6: Final answer
    x = 6,253.05

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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.