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Finding the Fourth Proportional to 2,745.70, 3,790.86 and 2,450.50

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Solution

The fourth proportional to 2,745.70, 3,790.86 and 2,450.50 is: 3,383.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,745.70 : 3,790.86 = 2,450.50 : x
  2. Step 2: Convert to fraction form
    2,745.70/3,790.86 = 2,450.50/x
  3. Step 3: Cross multiply
    2,745.70x = 3,790.86 × 2,450.50
  4. Step 4: Simplify right side
    2,745.70x = 9,289,502.43
  5. Step 5: Solve for x
    x = 9,289,502.43/2,745.70
  6. Step 6: Final answer
    x = 3,383.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.