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Finding the Third Proportional to 3,390.19 and 7,298.44

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Solution

The third proportional to 3,390.19 and 7,298.44 is: 15,712.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,390.19 : 7,298.44 = 7,298.44 : x
  2. Step 2: Convert to fraction form
    3,390.19/7,298.44 = 7,298.44/x
  3. Step 3: Cross multiply
    3,390.19x = 7,298.44 × 7,298.44
  4. Step 4: Simplify right side
    3,390.19x = 53,267,189.94
  5. Step 5: Solve for x
    x = 53,267,189.94/3,390.19
  6. Step 6: Final answer
    x = 15,712.17

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.