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Finding the Third Proportional to 7.19 and 7.51

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Solution

The third proportional to 7.19 and 7.51 is: 7.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7.19 : 7.51 = 7.51 : x
  2. Step 2: Convert to fraction form
    7.19/7.51 = 7.51/x
  3. Step 3: Cross multiply
    7.19x = 7.51 × 7.51
  4. Step 4: Simplify right side
    7.19x = 56.45
  5. Step 5: Solve for x
    x = 56.45/7.19
  6. Step 6: Final answer
    x = 7.85

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Why These Related Problems?

These problems maintain the same ratio (1.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.