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Finding the Fourth Proportional to 7.39, 10.14 and 7.19

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Solution

The fourth proportional to 7.39, 10.14 and 7.19 is: 9.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7.39 : 10.14 = 7.19 : x
  2. Step 2: Convert to fraction form
    7.39/10.14 = 7.19/x
  3. Step 3: Cross multiply
    7.39x = 10.14 × 7.19
  4. Step 4: Simplify right side
    7.39x = 72.91
  5. Step 5: Solve for x
    x = 72.91/7.39
  6. Step 6: Final answer
    x = 9.87

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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.