Home / 5,451.18-8,173.12-2,163.39

Finding the Fourth Proportional to 5,451.18, 8,173.12 and 2,163.39

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Solution

The fourth proportional to 5,451.18, 8,173.12 and 2,163.39 is: 3,243.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,451.18 : 8,173.12 = 2,163.39 : x
  2. Step 2: Convert to fraction form
    5,451.18/8,173.12 = 2,163.39/x
  3. Step 3: Cross multiply
    5,451.18x = 8,173.12 × 2,163.39
  4. Step 4: Simplify right side
    5,451.18x = 17,681,646.08
  5. Step 5: Solve for x
    x = 17,681,646.08/5,451.18
  6. Step 6: Final answer
    x = 3,243.64

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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.