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Finding the Third Proportional to 3,109.64 and 4,442.34

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Solution

The third proportional to 3,109.64 and 4,442.34 is: 6,346.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,109.64 : 4,442.34 = 4,442.34 : x
  2. Step 2: Convert to fraction form
    3,109.64/4,442.34 = 4,442.34/x
  3. Step 3: Cross multiply
    3,109.64x = 4,442.34 × 4,442.34
  4. Step 4: Simplify right side
    3,109.64x = 19,734,417.99
  5. Step 5: Solve for x
    x = 19,734,417.99/3,109.64
  6. Step 6: Final answer
    x = 6,346.21

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.