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Finding the Fourth Proportional to 2.64, 3.62 and 2.42

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Solution

The fourth proportional to 2.64, 3.62 and 2.42 is: 3.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2.64 : 3.62 = 2.42 : x
  2. Step 2: Convert to fraction form
    2.64/3.62 = 2.42/x
  3. Step 3: Cross multiply
    2.64x = 3.62 × 2.42
  4. Step 4: Simplify right side
    2.64x = 8.73
  5. Step 5: Solve for x
    x = 8.73/2.64
  6. Step 6: Final answer
    x = 3.31

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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.