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Finding the Fourth Proportional to 37.77, 51.80 and 36.86

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Solution

The fourth proportional to 37.77, 51.80 and 36.86 is: 50.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    37.77 : 51.80 = 36.86 : x
  2. Step 2: Convert to fraction form
    37.77/51.80 = 36.86/x
  3. Step 3: Cross multiply
    37.77x = 51.80 × 36.86
  4. Step 4: Simplify right side
    37.77x = 1,909.35
  5. Step 5: Solve for x
    x = 1,909.35/37.77
  6. Step 6: Final answer
    x = 50.55

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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.