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Finding the Fourth Proportional to 3.32, 4.59 and 2.11

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Solution

The fourth proportional to 3.32, 4.59 and 2.11 is: 2.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3.32 : 4.59 = 2.11 : x
  2. Step 2: Convert to fraction form
    3.32/4.59 = 2.11/x
  3. Step 3: Cross multiply
    3.32x = 4.59 × 2.11
  4. Step 4: Simplify right side
    3.32x = 9.67
  5. Step 5: Solve for x
    x = 9.67/3.32
  6. Step 6: Final answer
    x = 2.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.