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Finding the Third Proportional to 1,631.39 and 3,555.14

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Solution

The third proportional to 1,631.39 and 3,555.14 is: 7,747.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,631.39 : 3,555.14 = 3,555.14 : x
  2. Step 2: Convert to fraction form
    1,631.39/3,555.14 = 3,555.14/x
  3. Step 3: Cross multiply
    1,631.39x = 3,555.14 × 3,555.14
  4. Step 4: Simplify right side
    1,631.39x = 12,639,024.86
  5. Step 5: Solve for x
    x = 12,639,024.86/1,631.39
  6. Step 6: Final answer
    x = 7,747.39

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.