Home / 1,940.22-2,907.90-1,393.46

Finding the Fourth Proportional to 1,940.22, 2,907.90 and 1,393.46

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Solution

The fourth proportional to 1,940.22, 2,907.90 and 1,393.46 is: 2,088.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,940.22 : 2,907.90 = 1,393.46 : x
  2. Step 2: Convert to fraction form
    1,940.22/2,907.90 = 1,393.46/x
  3. Step 3: Cross multiply
    1,940.22x = 2,907.90 × 1,393.46
  4. Step 4: Simplify right side
    1,940.22x = 4,052,042.33
  5. Step 5: Solve for x
    x = 4,052,042.33/1,940.22
  6. Step 6: Final answer
    x = 2,088.44

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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.