Home / 3,230.82-4,455.81-2,640.33

Finding the Fourth Proportional to 3,230.82, 4,455.81 and 2,640.33

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Solution

The fourth proportional to 3,230.82, 4,455.81 and 2,640.33 is: 3,641.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,230.82 : 4,455.81 = 2,640.33 : x
  2. Step 2: Convert to fraction form
    3,230.82/4,455.81 = 2,640.33/x
  3. Step 3: Cross multiply
    3,230.82x = 4,455.81 × 2,640.33
  4. Step 4: Simplify right side
    3,230.82x = 11,764,808.82
  5. Step 5: Solve for x
    x = 11,764,808.82/3,230.82
  6. Step 6: Final answer
    x = 3,641.43

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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.