Home / 1,961.37-2,942.06-1,095.21

Finding the Fourth Proportional to 1,961.37, 2,942.06 and 1,095.21

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Solution

The fourth proportional to 1,961.37, 2,942.06 and 1,095.21 is: 1,642.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,961.37 : 2,942.06 = 1,095.21 : x
  2. Step 2: Convert to fraction form
    1,961.37/2,942.06 = 1,095.21/x
  3. Step 3: Cross multiply
    1,961.37x = 2,942.06 × 1,095.21
  4. Step 4: Simplify right side
    1,961.37x = 3,222,168.06
  5. Step 5: Solve for x
    x = 3,222,168.06/1,961.37
  6. Step 6: Final answer
    x = 1,642.82

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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.