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Finding the Fourth Proportional to 1,940.55, 2,910.60 and 1,826.34

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Solution

The fourth proportional to 1,940.55, 2,910.60 and 1,826.34 is: 2,739.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,940.55 : 2,910.60 = 1,826.34 : x
  2. Step 2: Convert to fraction form
    1,940.55/2,910.60 = 1,826.34/x
  3. Step 3: Cross multiply
    1,940.55x = 2,910.60 × 1,826.34
  4. Step 4: Simplify right side
    1,940.55x = 5,315,745.20
  5. Step 5: Solve for x
    x = 5,315,745.20/1,940.55
  6. Step 6: Final answer
    x = 2,739.30

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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.