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Finding the Fourth Proportional to 46.21, 63.83 and 39.37

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Solution

The fourth proportional to 46.21, 63.83 and 39.37 is: 54.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    46.21 : 63.83 = 39.37 : x
  2. Step 2: Convert to fraction form
    46.21/63.83 = 39.37/x
  3. Step 3: Cross multiply
    46.21x = 63.83 × 39.37
  4. Step 4: Simplify right side
    46.21x = 2,512.93
  5. Step 5: Solve for x
    x = 2,512.93/46.21
  6. Step 6: Final answer
    x = 54.39

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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.