Home / 2,850.63-3,933.39-1,904.90

Finding the Fourth Proportional to 2,850.63, 3,933.39 and 1,904.90

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Solution

The fourth proportional to 2,850.63, 3,933.39 and 1,904.90 is: 2,628.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,850.63 : 3,933.39 = 1,904.90 : x
  2. Step 2: Convert to fraction form
    2,850.63/3,933.39 = 1,904.90/x
  3. Step 3: Cross multiply
    2,850.63x = 3,933.39 × 1,904.90
  4. Step 4: Simplify right side
    2,850.63x = 7,492,694.94
  5. Step 5: Solve for x
    x = 7,492,694.94/2,850.63
  6. Step 6: Final answer
    x = 2,628.44

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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.