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Finding the Fourth Proportional to 2,950.68, 4,425.91 and 759.43

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Solution

The fourth proportional to 2,950.68, 4,425.91 and 759.43 is: 1,139.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,950.68 : 4,425.91 = 759.43 : x
  2. Step 2: Convert to fraction form
    2,950.68/4,425.91 = 759.43/x
  3. Step 3: Cross multiply
    2,950.68x = 4,425.91 × 759.43
  4. Step 4: Simplify right side
    2,950.68x = 3,361,168.83
  5. Step 5: Solve for x
    x = 3,361,168.83/2,950.68
  6. Step 6: Final answer
    x = 1,139.12

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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.