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Finding the Fourth Proportional to 660.80, 937.04 and 660.80

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Solution

The fourth proportional to 660.80, 937.04 and 660.80 is: 937.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    660.80 : 937.04 = 660.80 : x
  2. Step 2: Convert to fraction form
    660.80/937.04 = 660.80/x
  3. Step 3: Cross multiply
    660.80x = 937.04 × 660.80
  4. Step 4: Simplify right side
    660.80x = 619,196.03
  5. Step 5: Solve for x
    x = 619,196.03/660.80
  6. Step 6: Final answer
    x = 937.04

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.