Home / 3,621.87-4,997.75-2,028.60

Finding the Fourth Proportional to 3,621.87, 4,997.75 and 2,028.60

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Solution

The fourth proportional to 3,621.87, 4,997.75 and 2,028.60 is: 2,799.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,621.87 : 4,997.75 = 2,028.60 : x
  2. Step 2: Convert to fraction form
    3,621.87/4,997.75 = 2,028.60/x
  3. Step 3: Cross multiply
    3,621.87x = 4,997.75 × 2,028.60
  4. Step 4: Simplify right side
    3,621.87x = 10,138,425.51
  5. Step 5: Solve for x
    x = 10,138,425.51/3,621.87
  6. Step 6: Final answer
    x = 2,799.22

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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.