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Finding the Fourth Proportional to 8,797.70, 13,198.78 and 2,557.56

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Solution

The fourth proportional to 8,797.70, 13,198.78 and 2,557.56 is: 3,836.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,797.70 : 13,198.78 = 2,557.56 : x
  2. Step 2: Convert to fraction form
    8,797.70/13,198.78 = 2,557.56/x
  3. Step 3: Cross multiply
    8,797.70x = 13,198.78 × 2,557.56
  4. Step 4: Simplify right side
    8,797.70x = 33,756,671.78
  5. Step 5: Solve for x
    x = 33,756,671.78/8,797.70
  6. Step 6: Final answer
    x = 3,836.99

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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.