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Finding the Fourth Proportional to 37.18, 51.33 and 33.91

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Solution

The fourth proportional to 37.18, 51.33 and 33.91 is: 46.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    37.18 : 51.33 = 33.91 : x
  2. Step 2: Convert to fraction form
    37.18/51.33 = 33.91/x
  3. Step 3: Cross multiply
    37.18x = 51.33 × 33.91
  4. Step 4: Simplify right side
    37.18x = 1,740.60
  5. Step 5: Solve for x
    x = 1,740.60/37.18
  6. Step 6: Final answer
    x = 46.82

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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.