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Finding the Fourth Proportional to 1,954.92, 2,929.48 and 1,906.62

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Solution

The fourth proportional to 1,954.92, 2,929.48 and 1,906.62 is: 2,857.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,954.92 : 2,929.48 = 1,906.62 : x
  2. Step 2: Convert to fraction form
    1,954.92/2,929.48 = 1,906.62/x
  3. Step 3: Cross multiply
    1,954.92x = 2,929.48 × 1,906.62
  4. Step 4: Simplify right side
    1,954.92x = 5,585,405.16
  5. Step 5: Solve for x
    x = 5,585,405.16/1,954.92
  6. Step 6: Final answer
    x = 2,857.10

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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.