Home / 2,834.10-3,912.44-1,890.45

Finding the Fourth Proportional to 2,834.10, 3,912.44 and 1,890.45

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Solution

The fourth proportional to 2,834.10, 3,912.44 and 1,890.45 is: 2,609.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,834.10 : 3,912.44 = 1,890.45 : x
  2. Step 2: Convert to fraction form
    2,834.10/3,912.44 = 1,890.45/x
  3. Step 3: Cross multiply
    2,834.10x = 3,912.44 × 1,890.45
  4. Step 4: Simplify right side
    2,834.10x = 7,396,262.75
  5. Step 5: Solve for x
    x = 7,396,262.75/2,834.10
  6. Step 6: Final answer
    x = 2,609.74

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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.