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Finding the Third Proportional to 1,872 and 4,432.50

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Solution

The third proportional to 1,872 and 4,432.50 is: 10,495.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,872 : 4,432.50 = 4,432.50 : x
  2. Step 2: Convert to fraction form
    1,872/4,432.50 = 4,432.50/x
  3. Step 3: Cross multiply
    1,872x = 4,432.50 × 4,432.50
  4. Step 4: Simplify right side
    1,872x = 19,647,056.25
  5. Step 5: Solve for x
    x = 19,647,056.25/1,872
  6. Step 6: Final answer
    x = 10,495.22

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Why These Related Problems?

These problems maintain the same ratio (2.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.