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Finding the Third Proportional to 3,218 and 7,453

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Solution

The third proportional to 3,218 and 7,453 is: 17,261.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,218 : 7,453 = 7,453 : x
  2. Step 2: Convert to fraction form
    3,218/7,453 = 7,453/x
  3. Step 3: Cross multiply
    3,218x = 7,453 × 7,453
  4. Step 4: Simplify right side
    3,218x = 55,547,209
  5. Step 5: Solve for x
    x = 55,547,209/3,218
  6. Step 6: Final answer
    x = 17,261.41

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Why These Related Problems?

These problems maintain the same ratio (2.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.