Home / 2,072.12-2,858.10-1,983.56

Finding the Fourth Proportional to 2,072.12, 2,858.10 and 1,983.56

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Solution

The fourth proportional to 2,072.12, 2,858.10 and 1,983.56 is: 2,735.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,072.12 : 2,858.10 = 1,983.56 : x
  2. Step 2: Convert to fraction form
    2,072.12/2,858.10 = 1,983.56/x
  3. Step 3: Cross multiply
    2,072.12x = 2,858.10 × 1,983.56
  4. Step 4: Simplify right side
    2,072.12x = 5,669,212.84
  5. Step 5: Solve for x
    x = 5,669,212.84/2,072.12
  6. Step 6: Final answer
    x = 2,735.95

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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.