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Finding the Fourth Proportional to 1,789.72, 2,682.12 and 968.44

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Solution

The fourth proportional to 1,789.72, 2,682.12 and 968.44 is: 1,451.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,789.72 : 2,682.12 = 968.44 : x
  2. Step 2: Convert to fraction form
    1,789.72/2,682.12 = 968.44/x
  3. Step 3: Cross multiply
    1,789.72x = 2,682.12 × 968.44
  4. Step 4: Simplify right side
    1,789.72x = 2,597,472.29
  5. Step 5: Solve for x
    x = 2,597,472.29/1,789.72
  6. Step 6: Final answer
    x = 1,451.33

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1.5x scale

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.