Home / 1,940.60-2,908.84-1,395.21

Finding the Fourth Proportional to 1,940.60, 2,908.84 and 1,395.21

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Solution

The fourth proportional to 1,940.60, 2,908.84 and 1,395.21 is: 2,091.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,940.60 : 2,908.84 = 1,395.21 : x
  2. Step 2: Convert to fraction form
    1,940.60/2,908.84 = 1,395.21/x
  3. Step 3: Cross multiply
    1,940.60x = 2,908.84 × 1,395.21
  4. Step 4: Simplify right side
    1,940.60x = 4,058,442.66
  5. Step 5: Solve for x
    x = 4,058,442.66/1,940.60
  6. Step 6: Final answer
    x = 2,091.33

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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.