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Finding the Third Proportional to 1,383.19 and 2,800.13

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Solution

The third proportional to 1,383.19 and 2,800.13 is: 5,668.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383.19 : 2,800.13 = 2,800.13 : x
  2. Step 2: Convert to fraction form
    1,383.19/2,800.13 = 2,800.13/x
  3. Step 3: Cross multiply
    1,383.19x = 2,800.13 × 2,800.13
  4. Step 4: Simplify right side
    1,383.19x = 7,840,700.02
  5. Step 5: Solve for x
    x = 7,840,700.02/1,383.19
  6. Step 6: Final answer
    x = 5,668.57

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Why These Related Problems?

These problems maintain the same ratio (2.02) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.