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Finding the Fourth Proportional to 6,640.50, 9,962.51 and 3,309.73

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Solution

The fourth proportional to 6,640.50, 9,962.51 and 3,309.73 is: 4,965.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,640.50 : 9,962.51 = 3,309.73 : x
  2. Step 2: Convert to fraction form
    6,640.50/9,962.51 = 3,309.73/x
  3. Step 3: Cross multiply
    6,640.50x = 9,962.51 × 3,309.73
  4. Step 4: Simplify right side
    6,640.50x = 32,973,201.67
  5. Step 5: Solve for x
    x = 32,973,201.67/6,640.50
  6. Step 6: Final answer
    x = 4,965.47

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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.