Home / 3,629.78-5,008.77-2,213.88

Finding the Fourth Proportional to 3,629.78, 5,008.77 and 2,213.88

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Solution

The fourth proportional to 3,629.78, 5,008.77 and 2,213.88 is: 3,054.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,629.78 : 5,008.77 = 2,213.88 : x
  2. Step 2: Convert to fraction form
    3,629.78/5,008.77 = 2,213.88/x
  3. Step 3: Cross multiply
    3,629.78x = 5,008.77 × 2,213.88
  4. Step 4: Simplify right side
    3,629.78x = 11,088,825.12
  5. Step 5: Solve for x
    x = 11,088,825.12/3,629.78
  6. Step 6: Final answer
    x = 3,054.96

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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.