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Finding the Third Proportional to 3,419 and 5,127.50

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Solution

The third proportional to 3,419 and 5,127.50 is: 7,689.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,419 : 5,127.50 = 5,127.50 : x
  2. Step 2: Convert to fraction form
    3,419/5,127.50 = 5,127.50/x
  3. Step 3: Cross multiply
    3,419x = 5,127.50 × 5,127.50
  4. Step 4: Simplify right side
    3,419x = 26,291,256.25
  5. Step 5: Solve for x
    x = 26,291,256.25/3,419
  6. Step 6: Final answer
    x = 7,689.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.