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Finding the Fourth Proportional to 6,640.03, 9,163.62 and 3,656.50

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Solution

The fourth proportional to 6,640.03, 9,163.62 and 3,656.50 is: 5,046.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,640.03 : 9,163.62 = 3,656.50 : x
  2. Step 2: Convert to fraction form
    6,640.03/9,163.62 = 3,656.50/x
  3. Step 3: Cross multiply
    6,640.03x = 9,163.62 × 3,656.50
  4. Step 4: Simplify right side
    6,640.03x = 33,506,776.53
  5. Step 5: Solve for x
    x = 33,506,776.53/6,640.03
  6. Step 6: Final answer
    x = 5,046.18

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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.