Home / 5,451.69-8,178.91-2,163.70

Finding the Fourth Proportional to 5,451.69, 8,178.91 and 2,163.70

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Solution

The fourth proportional to 5,451.69, 8,178.91 and 2,163.70 is: 3,246.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,451.69 : 8,178.91 = 2,163.70 : x
  2. Step 2: Convert to fraction form
    5,451.69/8,178.91 = 2,163.70/x
  3. Step 3: Cross multiply
    5,451.69x = 8,178.91 × 2,163.70
  4. Step 4: Simplify right side
    5,451.69x = 17,696,702.16
  5. Step 5: Solve for x
    x = 17,696,702.16/5,451.69
  6. Step 6: Final answer
    x = 3,246.09

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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.