Home / 5,431.11-8,144.97-2,311.08

Finding the Fourth Proportional to 5,431.11, 8,144.97 and 2,311.08

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Solution

The fourth proportional to 5,431.11, 8,144.97 and 2,311.08 is: 3,465.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,431.11 : 8,144.97 = 2,311.08 : x
  2. Step 2: Convert to fraction form
    5,431.11/8,144.97 = 2,311.08/x
  3. Step 3: Cross multiply
    5,431.11x = 8,144.97 × 2,311.08
  4. Step 4: Simplify right side
    5,431.11x = 18,823,677.27
  5. Step 5: Solve for x
    x = 18,823,677.27/5,431.11
  6. Step 6: Final answer
    x = 3,465.90

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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.