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Finding the Third Proportional to 2,929.92 and 4,509.42

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Solution

The third proportional to 2,929.92 and 4,509.42 is: 6,940.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,929.92 : 4,509.42 = 4,509.42 : x
  2. Step 2: Convert to fraction form
    2,929.92/4,509.42 = 4,509.42/x
  3. Step 3: Cross multiply
    2,929.92x = 4,509.42 × 4,509.42
  4. Step 4: Simplify right side
    2,929.92x = 20,334,885.65
  5. Step 5: Solve for x
    x = 20,334,885.65/2,929.92
  6. Step 6: Final answer
    x = 6,940.42

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.