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Finding the Third Proportional to 1,308.97 and 1,831.04

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Solution

The third proportional to 1,308.97 and 1,831.04 is: 2,561.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,308.97 : 1,831.04 = 1,831.04 : x
  2. Step 2: Convert to fraction form
    1,308.97/1,831.04 = 1,831.04/x
  3. Step 3: Cross multiply
    1,308.97x = 1,831.04 × 1,831.04
  4. Step 4: Simplify right side
    1,308.97x = 3,352,718.35
  5. Step 5: Solve for x
    x = 3,352,718.35/1,308.97
  6. Step 6: Final answer
    x = 2,561.34

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.