Home / 2,183.88-3,015.18-1,685.64

Finding the Fourth Proportional to 2,183.88, 3,015.18 and 1,685.64

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Solution

The fourth proportional to 2,183.88, 3,015.18 and 1,685.64 is: 2,327.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,183.88 : 3,015.18 = 1,685.64 : x
  2. Step 2: Convert to fraction form
    2,183.88/3,015.18 = 1,685.64/x
  3. Step 3: Cross multiply
    2,183.88x = 3,015.18 × 1,685.64
  4. Step 4: Simplify right side
    2,183.88x = 5,082,508.02
  5. Step 5: Solve for x
    x = 5,082,508.02/2,183.88
  6. Step 6: Final answer
    x = 2,327.28

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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.