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Finding the Fourth Proportional to 1,954.33, 2,708.29 and 1,917.42

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Solution

The fourth proportional to 1,954.33, 2,708.29 and 1,917.42 is: 2,657.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,954.33 : 2,708.29 = 1,917.42 : x
  2. Step 2: Convert to fraction form
    1,954.33/2,708.29 = 1,917.42/x
  3. Step 3: Cross multiply
    1,954.33x = 2,708.29 × 1,917.42
  4. Step 4: Simplify right side
    1,954.33x = 5,192,929.41
  5. Step 5: Solve for x
    x = 5,192,929.41/1,954.33
  6. Step 6: Final answer
    x = 2,657.14

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.