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Finding the Fourth Proportional to 662.80, 960.10 and 662.80

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Solution

The fourth proportional to 662.80, 960.10 and 662.80 is: 960.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    662.80 : 960.10 = 662.80 : x
  2. Step 2: Convert to fraction form
    662.80/960.10 = 662.80/x
  3. Step 3: Cross multiply
    662.80x = 960.10 × 662.80
  4. Step 4: Simplify right side
    662.80x = 636,354.28
  5. Step 5: Solve for x
    x = 636,354.28/662.80
  6. Step 6: Final answer
    x = 960.10

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.