Home / 2,072.90-3,101.60-1,236.92

Finding the Fourth Proportional to 2,072.90, 3,101.60 and 1,236.92

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Solution

The fourth proportional to 2,072.90, 3,101.60 and 1,236.92 is: 1,850.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,072.90 : 3,101.60 = 1,236.92 : x
  2. Step 2: Convert to fraction form
    2,072.90/3,101.60 = 1,236.92/x
  3. Step 3: Cross multiply
    2,072.90x = 3,101.60 × 1,236.92
  4. Step 4: Simplify right side
    2,072.90x = 3,836,409.38
  5. Step 5: Solve for x
    x = 3,836,409.38/2,072.90
  6. Step 6: Final answer
    x = 1,850.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.