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Finding the Third Proportional to 2,136 and 4,159.50

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Solution

The third proportional to 2,136 and 4,159.50 is: 8,099.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,136 : 4,159.50 = 4,159.50 : x
  2. Step 2: Convert to fraction form
    2,136/4,159.50 = 4,159.50/x
  3. Step 3: Cross multiply
    2,136x = 4,159.50 × 4,159.50
  4. Step 4: Simplify right side
    2,136x = 17,301,440.25
  5. Step 5: Solve for x
    x = 17,301,440.25/2,136
  6. Step 6: Final answer
    x = 8,099.93

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Why These Related Problems?

These problems maintain the same ratio (1.95) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.