Home / 2,186.09-3,280.73-1,639.75

Finding the Fourth Proportional to 2,186.09, 3,280.73 and 1,639.75

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Solution

The fourth proportional to 2,186.09, 3,280.73 and 1,639.75 is: 2,460.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,186.09 : 3,280.73 = 1,639.75 : x
  2. Step 2: Convert to fraction form
    2,186.09/3,280.73 = 1,639.75/x
  3. Step 3: Cross multiply
    2,186.09x = 3,280.73 × 1,639.75
  4. Step 4: Simplify right side
    2,186.09x = 5,379,577.02
  5. Step 5: Solve for x
    x = 5,379,577.02/2,186.09
  6. Step 6: Final answer
    x = 2,460.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.