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Finding the Third Proportional to 2,453 and 2,978

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Solution

The third proportional to 2,453 and 2,978 is: 3,615.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,453 : 2,978 = 2,978 : x
  2. Step 2: Convert to fraction form
    2,453/2,978 = 2,978/x
  3. Step 3: Cross multiply
    2,453x = 2,978 × 2,978
  4. Step 4: Simplify right side
    2,453x = 8,868,484
  5. Step 5: Solve for x
    x = 8,868,484/2,453
  6. Step 6: Final answer
    x = 3,615.36

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Why These Related Problems?

These problems maintain the same ratio (1.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.