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Finding the Fourth Proportional to 46.41, 64.02 and 27.98

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Solution

The fourth proportional to 46.41, 64.02 and 27.98 is: 38.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    46.41 : 64.02 = 27.98 : x
  2. Step 2: Convert to fraction form
    46.41/64.02 = 27.98/x
  3. Step 3: Cross multiply
    46.41x = 64.02 × 27.98
  4. Step 4: Simplify right side
    46.41x = 1,791.30
  5. Step 5: Solve for x
    x = 1,791.30/46.41
  6. Step 6: Final answer
    x = 38.60

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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.