Home / 2,213.36-3,321.44-2,005.55

Finding the Fourth Proportional to 2,213.36, 3,321.44 and 2,005.55

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Solution

The fourth proportional to 2,213.36, 3,321.44 and 2,005.55 is: 3,009.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,213.36 : 3,321.44 = 2,005.55 : x
  2. Step 2: Convert to fraction form
    2,213.36/3,321.44 = 2,005.55/x
  3. Step 3: Cross multiply
    2,213.36x = 3,321.44 × 2,005.55
  4. Step 4: Simplify right side
    2,213.36x = 6,661,321.63
  5. Step 5: Solve for x
    x = 6,661,321.63/2,213.36
  6. Step 6: Final answer
    x = 3,009.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.