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Finding the Third Proportional to 3,136.50 and 4,589.50

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Solution

The third proportional to 3,136.50 and 4,589.50 is: 6,715.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,136.50 : 4,589.50 = 4,589.50 : x
  2. Step 2: Convert to fraction form
    3,136.50/4,589.50 = 4,589.50/x
  3. Step 3: Cross multiply
    3,136.50x = 4,589.50 × 4,589.50
  4. Step 4: Simplify right side
    3,136.50x = 21,063,510.25
  5. Step 5: Solve for x
    x = 21,063,510.25/3,136.50
  6. Step 6: Final answer
    x = 6,715.61

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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.