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Finding the Fourth Proportional to 6.28, 9.39 and 3.59

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Solution

The fourth proportional to 6.28, 9.39 and 3.59 is: 5.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    6.28 : 9.39 = 3.59 : x
  2. Step 2: Convert to fraction form
    6.28/9.39 = 3.59/x
  3. Step 3: Cross multiply
    6.28x = 9.39 × 3.59
  4. Step 4: Simplify right side
    6.28x = 33.71
  5. Step 5: Solve for x
    x = 33.71/6.28
  6. Step 6: Final answer
    x = 5.37

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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.