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Finding the Fourth Proportional to 37.55, 51.52 and 34.40

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Solution

The fourth proportional to 37.55, 51.52 and 34.40 is: 47.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    37.55 : 51.52 = 34.40 : x
  2. Step 2: Convert to fraction form
    37.55/51.52 = 34.40/x
  3. Step 3: Cross multiply
    37.55x = 51.52 × 34.40
  4. Step 4: Simplify right side
    37.55x = 1,772.29
  5. Step 5: Solve for x
    x = 1,772.29/37.55
  6. Step 6: Final answer
    x = 47.20

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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.