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Finding the Third Proportional to 1,355 and 2,893

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Solution

The third proportional to 1,355 and 2,893 is: 6,176.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,355 : 2,893 = 2,893 : x
  2. Step 2: Convert to fraction form
    1,355/2,893 = 2,893/x
  3. Step 3: Cross multiply
    1,355x = 2,893 × 2,893
  4. Step 4: Simplify right side
    1,355x = 8,369,449
  5. Step 5: Solve for x
    x = 8,369,449/1,355
  6. Step 6: Final answer
    x = 6,176.72

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.