Home / 3,186.11-4,775.87-1,338.30

Finding the Fourth Proportional to 3,186.11, 4,775.87 and 1,338.30

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Solution

The fourth proportional to 3,186.11, 4,775.87 and 1,338.30 is: 2,006.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,186.11 : 4,775.87 = 1,338.30 : x
  2. Step 2: Convert to fraction form
    3,186.11/4,775.87 = 1,338.30/x
  3. Step 3: Cross multiply
    3,186.11x = 4,775.87 × 1,338.30
  4. Step 4: Simplify right side
    3,186.11x = 6,391,540.13
  5. Step 5: Solve for x
    x = 6,391,540.13/3,186.11
  6. Step 6: Final answer
    x = 2,006.07

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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.