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Finding the Third Proportional to 1,899 and 3,811.50

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Solution

The third proportional to 1,899 and 3,811.50 is: 7,650.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,899 : 3,811.50 = 3,811.50 : x
  2. Step 2: Convert to fraction form
    1,899/3,811.50 = 3,811.50/x
  3. Step 3: Cross multiply
    1,899x = 3,811.50 × 3,811.50
  4. Step 4: Simplify right side
    1,899x = 14,527,532.25
  5. Step 5: Solve for x
    x = 14,527,532.25/1,899
  6. Step 6: Final answer
    x = 7,650.10

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Why These Related Problems?

These problems maintain the same ratio (2.01) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.