Home / 3,180.40-4,388.88-2,003.44

Finding the Fourth Proportional to 3,180.40, 4,388.88 and 2,003.44

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Solution

The fourth proportional to 3,180.40, 4,388.88 and 2,003.44 is: 2,764.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,180.40 : 4,388.88 = 2,003.44 : x
  2. Step 2: Convert to fraction form
    3,180.40/4,388.88 = 2,003.44/x
  3. Step 3: Cross multiply
    3,180.40x = 4,388.88 × 2,003.44
  4. Step 4: Simplify right side
    3,180.40x = 8,792,857.75
  5. Step 5: Solve for x
    x = 8,792,857.75/3,180.40
  6. Step 6: Final answer
    x = 2,764.70

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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.