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Finding the Third Proportional to 1,853.81 and 4,000.69

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Solution

The third proportional to 1,853.81 and 4,000.69 is: 8,633.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,853.81 : 4,000.69 = 4,000.69 : x
  2. Step 2: Convert to fraction form
    1,853.81/4,000.69 = 4,000.69/x
  3. Step 3: Cross multiply
    1,853.81x = 4,000.69 × 4,000.69
  4. Step 4: Simplify right side
    1,853.81x = 16,005,500.47
  5. Step 5: Solve for x
    x = 16,005,500.47/1,853.81
  6. Step 6: Final answer
    x = 8,633.83

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.