Home / 2,983.97-4,120.94-2,236.75

Finding the Fourth Proportional to 2,983.97, 4,120.94 and 2,236.75

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Solution

The fourth proportional to 2,983.97, 4,120.94 and 2,236.75 is: 3,089.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,983.97 : 4,120.94 = 2,236.75 : x
  2. Step 2: Convert to fraction form
    2,983.97/4,120.94 = 2,236.75/x
  3. Step 3: Cross multiply
    2,983.97x = 4,120.94 × 2,236.75
  4. Step 4: Simplify right side
    2,983.97x = 9,217,491.94
  5. Step 5: Solve for x
    x = 9,217,491.94/2,983.97
  6. Step 6: Final answer
    x = 3,089.00

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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.