Home / 2,579.75-3,556.73-2,107.15

Finding the Fourth Proportional to 2,579.75, 3,556.73 and 2,107.15

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Solution

The fourth proportional to 2,579.75, 3,556.73 and 2,107.15 is: 2,905.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,579.75 : 3,556.73 = 2,107.15 : x
  2. Step 2: Convert to fraction form
    2,579.75/3,556.73 = 2,107.15/x
  3. Step 3: Cross multiply
    2,579.75x = 3,556.73 × 2,107.15
  4. Step 4: Simplify right side
    2,579.75x = 7,494,563.62
  5. Step 5: Solve for x
    x = 7,494,563.62/2,579.75
  6. Step 6: Final answer
    x = 2,905.15

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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.