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Finding the Fourth Proportional to 6,640.45, 9,104.41 and 6,522

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Solution

The fourth proportional to 6,640.45, 9,104.41 and 6,522 is: 8,942.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,640.45 : 9,104.41 = 6,522 : x
  2. Step 2: Convert to fraction form
    6,640.45/9,104.41 = 6,522/x
  3. Step 3: Cross multiply
    6,640.45x = 9,104.41 × 6,522
  4. Step 4: Simplify right side
    6,640.45x = 59,378,962.02
  5. Step 5: Solve for x
    x = 59,378,962.02/6,640.45
  6. Step 6: Final answer
    x = 8,942.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.