Home / 5,453.91-8,179.80-2,122.17

Finding the Fourth Proportional to 5,453.91, 8,179.80 and 2,122.17

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Solution

The fourth proportional to 5,453.91, 8,179.80 and 2,122.17 is: 3,182.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,453.91 : 8,179.80 = 2,122.17 : x
  2. Step 2: Convert to fraction form
    5,453.91/8,179.80 = 2,122.17/x
  3. Step 3: Cross multiply
    5,453.91x = 8,179.80 × 2,122.17
  4. Step 4: Simplify right side
    5,453.91x = 17,358,926.17
  5. Step 5: Solve for x
    x = 17,358,926.17/5,453.91
  6. Step 6: Final answer
    x = 3,182.84

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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.