Home / 3,600.78-4,969.14-2,028.90

Finding the Fourth Proportional to 3,600.78, 4,969.14 and 2,028.90

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Solution

The fourth proportional to 3,600.78, 4,969.14 and 2,028.90 is: 2,799.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,600.78 : 4,969.14 = 2,028.90 : x
  2. Step 2: Convert to fraction form
    3,600.78/4,969.14 = 2,028.90/x
  3. Step 3: Cross multiply
    3,600.78x = 4,969.14 × 2,028.90
  4. Step 4: Simplify right side
    3,600.78x = 10,081,888.15
  5. Step 5: Solve for x
    x = 10,081,888.15/3,600.78
  6. Step 6: Final answer
    x = 2,799.92

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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.