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Finding the Fourth Proportional to 38.06, 57.35 and 37.40

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Solution

The fourth proportional to 38.06, 57.35 and 37.40 is: 56.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    38.06 : 57.35 = 37.40 : x
  2. Step 2: Convert to fraction form
    38.06/57.35 = 37.40/x
  3. Step 3: Cross multiply
    38.06x = 57.35 × 37.40
  4. Step 4: Simplify right side
    38.06x = 2,144.89
  5. Step 5: Solve for x
    x = 2,144.89/38.06
  6. Step 6: Final answer
    x = 56.36

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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.