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Finding the Third Proportional to 2,221 and 2,927.50

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Solution

The third proportional to 2,221 and 2,927.50 is: 3,858.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,221 : 2,927.50 = 2,927.50 : x
  2. Step 2: Convert to fraction form
    2,221/2,927.50 = 2,927.50/x
  3. Step 3: Cross multiply
    2,221x = 2,927.50 × 2,927.50
  4. Step 4: Simplify right side
    2,221x = 8,570,256.25
  5. Step 5: Solve for x
    x = 8,570,256.25/2,221
  6. Step 6: Final answer
    x = 3,858.74

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Why These Related Problems?

These problems maintain the same ratio (1.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.