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Finding the Third Proportional to 1,284.19 and 2,801.25

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Solution

The third proportional to 1,284.19 and 2,801.25 is: 6,110.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284.19 : 2,801.25 = 2,801.25 : x
  2. Step 2: Convert to fraction form
    1,284.19/2,801.25 = 2,801.25/x
  3. Step 3: Cross multiply
    1,284.19x = 2,801.25 × 2,801.25
  4. Step 4: Simplify right side
    1,284.19x = 7,847,001.56
  5. Step 5: Solve for x
    x = 7,847,001.56/1,284.19
  6. Step 6: Final answer
    x = 6,110.48

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.