Home / 2,380.82-3,568.32-1,687.68

Finding the Fourth Proportional to 2,380.82, 3,568.32 and 1,687.68

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Solution

The fourth proportional to 2,380.82, 3,568.32 and 1,687.68 is: 2,529.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,380.82 : 3,568.32 = 1,687.68 : x
  2. Step 2: Convert to fraction form
    2,380.82/3,568.32 = 1,687.68/x
  3. Step 3: Cross multiply
    2,380.82x = 3,568.32 × 1,687.68
  4. Step 4: Simplify right side
    2,380.82x = 6,022,182.30
  5. Step 5: Solve for x
    x = 6,022,182.30/2,380.82
  6. Step 6: Final answer
    x = 2,529.46

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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.