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Finding the Third Proportional to 3,156.75 and 4,621.13

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Solution

The third proportional to 3,156.75 and 4,621.13 is: 6,764.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,156.75 : 4,621.13 = 4,621.13 : x
  2. Step 2: Convert to fraction form
    3,156.75/4,621.13 = 4,621.13/x
  3. Step 3: Cross multiply
    3,156.75x = 4,621.13 × 4,621.13
  4. Step 4: Simplify right side
    3,156.75x = 21,354,796.27
  5. Step 5: Solve for x
    x = 21,354,796.27/3,156.75
  6. Step 6: Final answer
    x = 6,764.80

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.