Home / 3,115.09-4,299.12-2,327.77

Finding the Fourth Proportional to 3,115.09, 4,299.12 and 2,327.77

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Solution

The fourth proportional to 3,115.09, 4,299.12 and 2,327.77 is: 3,212.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,115.09 : 4,299.12 = 2,327.77 : x
  2. Step 2: Convert to fraction form
    3,115.09/4,299.12 = 2,327.77/x
  3. Step 3: Cross multiply
    3,115.09x = 4,299.12 × 2,327.77
  4. Step 4: Simplify right side
    3,115.09x = 10,007,362.56
  5. Step 5: Solve for x
    x = 10,007,362.56/3,115.09
  6. Step 6: Final answer
    x = 3,212.54

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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.