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Finding the Third Proportional to 3,378 and 6,492.75

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Solution

The third proportional to 3,378 and 6,492.75 is: 12,479.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,378 : 6,492.75 = 6,492.75 : x
  2. Step 2: Convert to fraction form
    3,378/6,492.75 = 6,492.75/x
  3. Step 3: Cross multiply
    3,378x = 6,492.75 × 6,492.75
  4. Step 4: Simplify right side
    3,378x = 42,155,802.56
  5. Step 5: Solve for x
    x = 42,155,802.56/3,378
  6. Step 6: Final answer
    x = 12,479.52

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Why These Related Problems?

These problems maintain the same ratio (1.92) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.