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Finding the Third Proportional to 984.66 and 1,611.56

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Solution

The third proportional to 984.66 and 1,611.56 is: 2,637.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    984.66 : 1,611.56 = 1,611.56 : x
  2. Step 2: Convert to fraction form
    984.66/1,611.56 = 1,611.56/x
  3. Step 3: Cross multiply
    984.66x = 1,611.56 × 1,611.56
  4. Step 4: Simplify right side
    984.66x = 2,597,133.69
  5. Step 5: Solve for x
    x = 2,597,133.69/984.66
  6. Step 6: Final answer
    x = 2,637.60

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Why These Related Problems?

These problems maintain the same ratio (1.64) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.