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Finding the Fourth Proportional to 37.20, 56.23 and 36.57

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Solution

The fourth proportional to 37.20, 56.23 and 36.57 is: 55.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    37.20 : 56.23 = 36.57 : x
  2. Step 2: Convert to fraction form
    37.20/56.23 = 36.57/x
  3. Step 3: Cross multiply
    37.20x = 56.23 × 36.57
  4. Step 4: Simplify right side
    37.20x = 2,056.33
  5. Step 5: Solve for x
    x = 2,056.33/37.20
  6. Step 6: Final answer
    x = 55.28

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.