Home / 3,021.30-4,169.34-1,676.79

Finding the Fourth Proportional to 3,021.30, 4,169.34 and 1,676.79

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Solution

The fourth proportional to 3,021.30, 4,169.34 and 1,676.79 is: 2,313.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,021.30 : 4,169.34 = 1,676.79 : x
  2. Step 2: Convert to fraction form
    3,021.30/4,169.34 = 1,676.79/x
  3. Step 3: Cross multiply
    3,021.30x = 4,169.34 × 1,676.79
  4. Step 4: Simplify right side
    3,021.30x = 6,991,107.62
  5. Step 5: Solve for x
    x = 6,991,107.62/3,021.30
  6. Step 6: Final answer
    x = 2,313.94

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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.