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Finding the Fourth Proportional to 662.10, 927.90 and 662.10

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Solution

The fourth proportional to 662.10, 927.90 and 662.10 is: 927.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    662.10 : 927.90 = 662.10 : x
  2. Step 2: Convert to fraction form
    662.10/927.90 = 662.10/x
  3. Step 3: Cross multiply
    662.10x = 927.90 × 662.10
  4. Step 4: Simplify right side
    662.10x = 614,362.59
  5. Step 5: Solve for x
    x = 614,362.59/662.10
  6. Step 6: Final answer
    x = 927.90

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.