Home / 2,834.05-3,910.69-1,638.85

Finding the Fourth Proportional to 2,834.05, 3,910.69 and 1,638.85

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Solution

The fourth proportional to 2,834.05, 3,910.69 and 1,638.85 is: 2,261.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,834.05 : 3,910.69 = 1,638.85 : x
  2. Step 2: Convert to fraction form
    2,834.05/3,910.69 = 1,638.85/x
  3. Step 3: Cross multiply
    2,834.05x = 3,910.69 × 1,638.85
  4. Step 4: Simplify right side
    2,834.05x = 6,409,029.30
  5. Step 5: Solve for x
    x = 6,409,029.30/2,834.05
  6. Step 6: Final answer
    x = 2,261.44

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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.