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Finding the Fourth Proportional to 35.57, 48.84 and 33.60

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Solution

The fourth proportional to 35.57, 48.84 and 33.60 is: 46.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    35.57 : 48.84 = 33.60 : x
  2. Step 2: Convert to fraction form
    35.57/48.84 = 33.60/x
  3. Step 3: Cross multiply
    35.57x = 48.84 × 33.60
  4. Step 4: Simplify right side
    35.57x = 1,640.61
  5. Step 5: Solve for x
    x = 1,640.61/35.57
  6. Step 6: Final answer
    x = 46.12

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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.