Home / 2,834.48-3,911.94-2,171.09

Finding the Fourth Proportional to 2,834.48, 3,911.94 and 2,171.09

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Solution

The fourth proportional to 2,834.48, 3,911.94 and 2,171.09 is: 2,996.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,834.48 : 3,911.94 = 2,171.09 : x
  2. Step 2: Convert to fraction form
    2,834.48/3,911.94 = 2,171.09/x
  3. Step 3: Cross multiply
    2,834.48x = 3,911.94 × 2,171.09
  4. Step 4: Simplify right side
    2,834.48x = 8,493,154.25
  5. Step 5: Solve for x
    x = 8,493,154.25/2,834.48
  6. Step 6: Final answer
    x = 2,996.38

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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.