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Finding the Fourth Proportional to 3,173.20, 4,759.95 and 833.21

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Solution

The fourth proportional to 3,173.20, 4,759.95 and 833.21 is: 1,249.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,173.20 : 4,759.95 = 833.21 : x
  2. Step 2: Convert to fraction form
    3,173.20/4,759.95 = 833.21/x
  3. Step 3: Cross multiply
    3,173.20x = 4,759.95 × 833.21
  4. Step 4: Simplify right side
    3,173.20x = 3,966,037.94
  5. Step 5: Solve for x
    x = 3,966,037.94/3,173.20
  6. Step 6: Final answer
    x = 1,249.86

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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.