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Finding the Fourth Proportional to 37.23, 51.28 and 34.31

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Solution

The fourth proportional to 37.23, 51.28 and 34.31 is: 47.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    37.23 : 51.28 = 34.31 : x
  2. Step 2: Convert to fraction form
    37.23/51.28 = 34.31/x
  3. Step 3: Cross multiply
    37.23x = 51.28 × 34.31
  4. Step 4: Simplify right side
    37.23x = 1,759.07
  5. Step 5: Solve for x
    x = 1,759.07/37.23
  6. Step 6: Final answer
    x = 47.25

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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.