Home / 3,600.74-4,969.20-2,028.80

Finding the Fourth Proportional to 3,600.74, 4,969.20 and 2,028.80

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Solution

The fourth proportional to 3,600.74, 4,969.20 and 2,028.80 is: 2,799.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,600.74 : 4,969.20 = 2,028.80 : x
  2. Step 2: Convert to fraction form
    3,600.74/4,969.20 = 2,028.80/x
  3. Step 3: Cross multiply
    3,600.74x = 4,969.20 × 2,028.80
  4. Step 4: Simplify right side
    3,600.74x = 10,081,512.96
  5. Step 5: Solve for x
    x = 10,081,512.96/3,600.74
  6. Step 6: Final answer
    x = 2,799.84

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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.