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Finding the Fourth Proportional to 2,718, 4,077 and 666

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Solution

The fourth proportional to 2,718, 4,077 and 666 is: 999

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,718 : 4,077 = 666 : x
  2. Step 2: Convert to fraction form
    2,718/4,077 = 666/x
  3. Step 3: Cross multiply
    2,718x = 4,077 × 666
  4. Step 4: Simplify right side
    2,718x = 2,715,282
  5. Step 5: Solve for x
    x = 2,715,282/2,718
  6. Step 6: Final answer
    x = 999

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.