Home / 3,205.98-4,423.41-1,861.11

Finding the Fourth Proportional to 3,205.98, 4,423.41 and 1,861.11

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Solution

The fourth proportional to 3,205.98, 4,423.41 and 1,861.11 is: 2,567.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,205.98 : 4,423.41 = 1,861.11 : x
  2. Step 2: Convert to fraction form
    3,205.98/4,423.41 = 1,861.11/x
  3. Step 3: Cross multiply
    3,205.98x = 4,423.41 × 1,861.11
  4. Step 4: Simplify right side
    3,205.98x = 8,232,452.59
  5. Step 5: Solve for x
    x = 8,232,452.59/3,205.98
  6. Step 6: Final answer
    x = 2,567.84

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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.