Home / 1,236.94-1,845.41-1,192.12

Finding the Fourth Proportional to 1,236.94, 1,845.41 and 1,192.12

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Solution

The fourth proportional to 1,236.94, 1,845.41 and 1,192.12 is: 1,778.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,236.94 : 1,845.41 = 1,192.12 : x
  2. Step 2: Convert to fraction form
    1,236.94/1,845.41 = 1,192.12/x
  3. Step 3: Cross multiply
    1,236.94x = 1,845.41 × 1,192.12
  4. Step 4: Simplify right side
    1,236.94x = 2,199,950.17
  5. Step 5: Solve for x
    x = 2,199,950.17/1,236.94
  6. Step 6: Final answer
    x = 1,778.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.