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Finding the Fourth Proportional to 1,958.99, 2,701.82 and 1,722.42

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Solution

The fourth proportional to 1,958.99, 2,701.82 and 1,722.42 is: 2,375.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,958.99 : 2,701.82 = 1,722.42 : x
  2. Step 2: Convert to fraction form
    1,958.99/2,701.82 = 1,722.42/x
  3. Step 3: Cross multiply
    1,958.99x = 2,701.82 × 1,722.42
  4. Step 4: Simplify right side
    1,958.99x = 4,653,660.19
  5. Step 5: Solve for x
    x = 4,653,660.19/1,958.99
  6. Step 6: Final answer
    x = 2,375.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.