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Finding the Third Proportional to 4,000 and 5,608

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Solution

The third proportional to 4,000 and 5,608 is: 7,862.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,000 : 5,608 = 5,608 : x
  2. Step 2: Convert to fraction form
    4,000/5,608 = 5,608/x
  3. Step 3: Cross multiply
    4,000x = 5,608 × 5,608
  4. Step 4: Simplify right side
    4,000x = 31,449,664
  5. Step 5: Solve for x
    x = 31,449,664/4,000
  6. Step 6: Final answer
    x = 7,862.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.