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Finding the Fourth Proportional to 6.89, 9.48 and 5.34

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Solution

The fourth proportional to 6.89, 9.48 and 5.34 is: 7.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    6.89 : 9.48 = 5.34 : x
  2. Step 2: Convert to fraction form
    6.89/9.48 = 5.34/x
  3. Step 3: Cross multiply
    6.89x = 9.48 × 5.34
  4. Step 4: Simplify right side
    6.89x = 50.62
  5. Step 5: Solve for x
    x = 50.62/6.89
  6. Step 6: Final answer
    x = 7.35

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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.