Home / 2,183.96-3,015.02-1,439.17

Finding the Fourth Proportional to 2,183.96, 3,015.02 and 1,439.17

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Solution

The fourth proportional to 2,183.96, 3,015.02 and 1,439.17 is: 1,986.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,183.96 : 3,015.02 = 1,439.17 : x
  2. Step 2: Convert to fraction form
    2,183.96/3,015.02 = 1,439.17/x
  3. Step 3: Cross multiply
    2,183.96x = 3,015.02 × 1,439.17
  4. Step 4: Simplify right side
    2,183.96x = 4,339,122.39
  5. Step 5: Solve for x
    x = 4,339,122.39/2,183.96
  6. Step 6: Final answer
    x = 1,986.81

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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.