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Finding the Third Proportional to 3,390.75 and 4,892.63

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Solution

The third proportional to 3,390.75 and 4,892.63 is: 7,059.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,390.75 : 4,892.63 = 4,892.63 : x
  2. Step 2: Convert to fraction form
    3,390.75/4,892.63 = 4,892.63/x
  3. Step 3: Cross multiply
    3,390.75x = 4,892.63 × 4,892.63
  4. Step 4: Simplify right side
    3,390.75x = 23,937,779.39
  5. Step 5: Solve for x
    x = 23,937,779.39/3,390.75
  6. Step 6: Final answer
    x = 7,059.73

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.