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Finding the Fourth Proportional to 6.76, 9.34 and 5.23

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Solution

The fourth proportional to 6.76, 9.34 and 5.23 is: 7.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6.76 : 9.34 = 5.23 : x
  2. Step 2: Convert to fraction form
    6.76/9.34 = 5.23/x
  3. Step 3: Cross multiply
    6.76x = 9.34 × 5.23
  4. Step 4: Simplify right side
    6.76x = 48.80
  5. Step 5: Solve for x
    x = 48.80/6.76
  6. Step 6: Final answer
    x = 7.22

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Find fourth proportional to 3.38, 4.67 and 2.61
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.