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Finding the Fourth Proportional to 8,891.92, 13,338.57 and 2,651.46

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Solution

The fourth proportional to 8,891.92, 13,338.57 and 2,651.46 is: 3,977.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,891.92 : 13,338.57 = 2,651.46 : x
  2. Step 2: Convert to fraction form
    8,891.92/13,338.57 = 2,651.46/x
  3. Step 3: Cross multiply
    8,891.92x = 13,338.57 × 2,651.46
  4. Step 4: Simplify right side
    8,891.92x = 35,366,604.86
  5. Step 5: Solve for x
    x = 35,366,604.86/8,891.92
  6. Step 6: Final answer
    x = 3,977.39

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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.