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Finding the Third Proportional to 1,629.28 and 3,438.07

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Solution

The third proportional to 1,629.28 and 3,438.07 is: 7,254.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,629.28 : 3,438.07 = 3,438.07 : x
  2. Step 2: Convert to fraction form
    1,629.28/3,438.07 = 3,438.07/x
  3. Step 3: Cross multiply
    1,629.28x = 3,438.07 × 3,438.07
  4. Step 4: Simplify right side
    1,629.28x = 11,820,327.47
  5. Step 5: Solve for x
    x = 11,820,327.47/1,629.28
  6. Step 6: Final answer
    x = 7,254.93

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.