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Finding the Fourth Proportional to 1,682.92, 2,522.65 and 759.12

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Solution

The fourth proportional to 1,682.92, 2,522.65 and 759.12 is: 1,137.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,682.92 : 2,522.65 = 759.12 : x
  2. Step 2: Convert to fraction form
    1,682.92/2,522.65 = 759.12/x
  3. Step 3: Cross multiply
    1,682.92x = 2,522.65 × 759.12
  4. Step 4: Simplify right side
    1,682.92x = 1,914,990.27
  5. Step 5: Solve for x
    x = 1,914,990.27/1,682.92
  6. Step 6: Final answer
    x = 1,137.90

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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.