Home / 3,240.94-4,480.45-3,211.33

Finding the Fourth Proportional to 3,240.94, 4,480.45 and 3,211.33

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Solution

The fourth proportional to 3,240.94, 4,480.45 and 3,211.33 is: 4,439.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,240.94 : 4,480.45 = 3,211.33 : x
  2. Step 2: Convert to fraction form
    3,240.94/4,480.45 = 3,211.33/x
  3. Step 3: Cross multiply
    3,240.94x = 4,480.45 × 3,211.33
  4. Step 4: Simplify right side
    3,240.94x = 14,388,203.50
  5. Step 5: Solve for x
    x = 14,388,203.50/3,240.94
  6. Step 6: Final answer
    x = 4,439.52

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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.