Home / 3,021.22-4,169.50-1,676.90

Finding the Fourth Proportional to 3,021.22, 4,169.50 and 1,676.90

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Solution

The fourth proportional to 3,021.22, 4,169.50 and 1,676.90 is: 2,314.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,021.22 : 4,169.50 = 1,676.90 : x
  2. Step 2: Convert to fraction form
    3,021.22/4,169.50 = 1,676.90/x
  3. Step 3: Cross multiply
    3,021.22x = 4,169.50 × 1,676.90
  4. Step 4: Simplify right side
    3,021.22x = 6,991,834.55
  5. Step 5: Solve for x
    x = 6,991,834.55/3,021.22
  6. Step 6: Final answer
    x = 2,314.24

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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.