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Finding the Fourth Proportional to 37.69, 56.48 and 26.83

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Solution

The fourth proportional to 37.69, 56.48 and 26.83 is: 40.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    37.69 : 56.48 = 26.83 : x
  2. Step 2: Convert to fraction form
    37.69/56.48 = 26.83/x
  3. Step 3: Cross multiply
    37.69x = 56.48 × 26.83
  4. Step 4: Simplify right side
    37.69x = 1,515.29
  5. Step 5: Solve for x
    x = 1,515.29/37.69
  6. Step 6: Final answer
    x = 40.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.