Home / 3,213.11-4,433.85-1,777.19

Finding the Fourth Proportional to 3,213.11, 4,433.85 and 1,777.19

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Solution

The fourth proportional to 3,213.11, 4,433.85 and 1,777.19 is: 2,452.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,213.11 : 4,433.85 = 1,777.19 : x
  2. Step 2: Convert to fraction form
    3,213.11/4,433.85 = 1,777.19/x
  3. Step 3: Cross multiply
    3,213.11x = 4,433.85 × 1,777.19
  4. Step 4: Simplify right side
    3,213.11x = 7,879,771.71
  5. Step 5: Solve for x
    x = 7,879,771.71/3,213.11
  6. Step 6: Final answer
    x = 2,452.39

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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.