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Finding the Third Proportional to 2,920 and 4,336

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Solution

The third proportional to 2,920 and 4,336 is: 6,438.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,920 : 4,336 = 4,336 : x
  2. Step 2: Convert to fraction form
    2,920/4,336 = 4,336/x
  3. Step 3: Cross multiply
    2,920x = 4,336 × 4,336
  4. Step 4: Simplify right side
    2,920x = 18,800,896
  5. Step 5: Solve for x
    x = 18,800,896/2,920
  6. Step 6: Final answer
    x = 6,438.66

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.