Home / 3,278.10-4,523.62-1,861.60

Finding the Fourth Proportional to 3,278.10, 4,523.62 and 1,861.60

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Solution

The fourth proportional to 3,278.10, 4,523.62 and 1,861.60 is: 2,568.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,278.10 : 4,523.62 = 1,861.60 : x
  2. Step 2: Convert to fraction form
    3,278.10/4,523.62 = 1,861.60/x
  3. Step 3: Cross multiply
    3,278.10x = 4,523.62 × 1,861.60
  4. Step 4: Simplify right side
    3,278.10x = 8,421,155.03
  5. Step 5: Solve for x
    x = 8,421,155.03/3,278.10
  6. Step 6: Final answer
    x = 2,568.91

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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.