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Finding the Third Proportional to 1,783.13 and 2,387.81

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Solution

The third proportional to 1,783.13 and 2,387.81 is: 3,197.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,783.13 : 2,387.81 = 2,387.81 : x
  2. Step 2: Convert to fraction form
    1,783.13/2,387.81 = 2,387.81/x
  3. Step 3: Cross multiply
    1,783.13x = 2,387.81 × 2,387.81
  4. Step 4: Simplify right side
    1,783.13x = 5,701,648.54
  5. Step 5: Solve for x
    x = 5,701,648.54/1,783.13
  6. Step 6: Final answer
    x = 3,197.56

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.