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Finding the Third Proportional to 918.19 and 2,165.44

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Solution

The third proportional to 918.19 and 2,165.44 is: 5,106.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    918.19 : 2,165.44 = 2,165.44 : x
  2. Step 2: Convert to fraction form
    918.19/2,165.44 = 2,165.44/x
  3. Step 3: Cross multiply
    918.19x = 2,165.44 × 2,165.44
  4. Step 4: Simplify right side
    918.19x = 4,689,119.57
  5. Step 5: Solve for x
    x = 4,689,119.57/918.19
  6. Step 6: Final answer
    x = 5,106.93

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.