Home / 3,278.14-4,523.85-1,861.82

Finding the Fourth Proportional to 3,278.14, 4,523.85 and 1,861.82

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Solution

The fourth proportional to 3,278.14, 4,523.85 and 1,861.82 is: 2,569.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,278.14 : 4,523.85 = 1,861.82 : x
  2. Step 2: Convert to fraction form
    3,278.14/4,523.85 = 1,861.82/x
  3. Step 3: Cross multiply
    3,278.14x = 4,523.85 × 1,861.82
  4. Step 4: Simplify right side
    3,278.14x = 8,422,588.75
  5. Step 5: Solve for x
    x = 8,422,588.75/3,278.14
  6. Step 6: Final answer
    x = 2,569.32

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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.