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Finding the Third Proportional to 4,090.15 and 8,904.54

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Solution

The third proportional to 4,090.15 and 8,904.54 is: 19,385.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,090.15 : 8,904.54 = 8,904.54 : x
  2. Step 2: Convert to fraction form
    4,090.15/8,904.54 = 8,904.54/x
  3. Step 3: Cross multiply
    4,090.15x = 8,904.54 × 8,904.54
  4. Step 4: Simplify right side
    4,090.15x = 79,290,815.92
  5. Step 5: Solve for x
    x = 79,290,815.92/4,090.15
  6. Step 6: Final answer
    x = 19,385.80

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.