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Finding the Third Proportional to 711.07 and 1,661.13

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Solution

The third proportional to 711.07 and 1,661.13 is: 3,880.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    711.07 : 1,661.13 = 1,661.13 : x
  2. Step 2: Convert to fraction form
    711.07/1,661.13 = 1,661.13/x
  3. Step 3: Cross multiply
    711.07x = 1,661.13 × 1,661.13
  4. Step 4: Simplify right side
    711.07x = 2,759,362.22
  5. Step 5: Solve for x
    x = 2,759,362.22/711.07
  6. Step 6: Final answer
    x = 3,880.58

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Why These Related Problems?

These problems maintain the same ratio (2.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.