Home / 3,131.12-4,316.33-2,383.77

Finding the Fourth Proportional to 3,131.12, 4,316.33 and 2,383.77

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Solution

The fourth proportional to 3,131.12, 4,316.33 and 2,383.77 is: 3,286.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,131.12 : 4,316.33 = 2,383.77 : x
  2. Step 2: Convert to fraction form
    3,131.12/4,316.33 = 2,383.77/x
  3. Step 3: Cross multiply
    3,131.12x = 4,316.33 × 2,383.77
  4. Step 4: Simplify right side
    3,131.12x = 10,289,137.96
  5. Step 5: Solve for x
    x = 10,289,137.96/3,131.12
  6. Step 6: Final answer
    x = 3,286.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.