Home / 3,716.96-5,129.52-2,145.12

Finding the Fourth Proportional to 3,716.96, 5,129.52 and 2,145.12

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Solution

The fourth proportional to 3,716.96, 5,129.52 and 2,145.12 is: 2,960.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,716.96 : 5,129.52 = 2,145.12 : x
  2. Step 2: Convert to fraction form
    3,716.96/5,129.52 = 2,145.12/x
  3. Step 3: Cross multiply
    3,716.96x = 5,129.52 × 2,145.12
  4. Step 4: Simplify right side
    3,716.96x = 11,003,435.94
  5. Step 5: Solve for x
    x = 11,003,435.94/3,716.96
  6. Step 6: Final answer
    x = 2,960.33

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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.