Home / 5,456.77-8,179.38-2,168.98

Finding the Fourth Proportional to 5,456.77, 8,179.38 and 2,168.98

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Solution

The fourth proportional to 5,456.77, 8,179.38 and 2,168.98 is: 3,251.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,456.77 : 8,179.38 = 2,168.98 : x
  2. Step 2: Convert to fraction form
    5,456.77/8,179.38 = 2,168.98/x
  3. Step 3: Cross multiply
    5,456.77x = 8,179.38 × 2,168.98
  4. Step 4: Simplify right side
    5,456.77x = 17,740,891.18
  5. Step 5: Solve for x
    x = 17,740,891.18/5,456.77
  6. Step 6: Final answer
    x = 3,251.17

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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.