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Finding the Fourth Proportional to 37.74, 56.88 and 37.54

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Solution

The fourth proportional to 37.74, 56.88 and 37.54 is: 56.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    37.74 : 56.88 = 37.54 : x
  2. Step 2: Convert to fraction form
    37.74/56.88 = 37.54/x
  3. Step 3: Cross multiply
    37.74x = 56.88 × 37.54
  4. Step 4: Simplify right side
    37.74x = 2,135.28
  5. Step 5: Solve for x
    x = 2,135.28/37.74
  6. Step 6: Final answer
    x = 56.58

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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.