Home / 1,983.63-2,736.41-1,238.16

Finding the Fourth Proportional to 1,983.63, 2,736.41 and 1,238.16

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Solution

The fourth proportional to 1,983.63, 2,736.41 and 1,238.16 is: 1,708.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,983.63 : 2,736.41 = 1,238.16 : x
  2. Step 2: Convert to fraction form
    1,983.63/2,736.41 = 1,238.16/x
  3. Step 3: Cross multiply
    1,983.63x = 2,736.41 × 1,238.16
  4. Step 4: Simplify right side
    1,983.63x = 3,388,107.21
  5. Step 5: Solve for x
    x = 3,388,107.21/1,983.63
  6. Step 6: Final answer
    x = 1,708.03

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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.