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Finding the Fourth Proportional to 34.88, 48.44 and 34.72

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Solution

The fourth proportional to 34.88, 48.44 and 34.72 is: 48.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    34.88 : 48.44 = 34.72 : x
  2. Step 2: Convert to fraction form
    34.88/48.44 = 34.72/x
  3. Step 3: Cross multiply
    34.88x = 48.44 × 34.72
  4. Step 4: Simplify right side
    34.88x = 1,681.84
  5. Step 5: Solve for x
    x = 1,681.84/34.88
  6. Step 6: Final answer
    x = 48.22

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.