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Finding the Fourth Proportional to 37.70, 52.11 and 33.58

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Solution

The fourth proportional to 37.70, 52.11 and 33.58 is: 46.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    37.70 : 52.11 = 33.58 : x
  2. Step 2: Convert to fraction form
    37.70/52.11 = 33.58/x
  3. Step 3: Cross multiply
    37.70x = 52.11 × 33.58
  4. Step 4: Simplify right side
    37.70x = 1,749.92
  5. Step 5: Solve for x
    x = 1,749.92/37.70
  6. Step 6: Final answer
    x = 46.42

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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.