Home / 5,431.37-8,141.49-2,146.73

Finding the Fourth Proportional to 5,431.37, 8,141.49 and 2,146.73

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Solution

The fourth proportional to 5,431.37, 8,141.49 and 2,146.73 is: 3,217.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,431.37 : 8,141.49 = 2,146.73 : x
  2. Step 2: Convert to fraction form
    5,431.37/8,141.49 = 2,146.73/x
  3. Step 3: Cross multiply
    5,431.37x = 8,141.49 × 2,146.73
  4. Step 4: Simplify right side
    5,431.37x = 17,477,540.12
  5. Step 5: Solve for x
    x = 17,477,540.12/5,431.37
  6. Step 6: Final answer
    x = 3,217.89

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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.