Home / 2,183.57-3,013.16-1,299.21

Finding the Fourth Proportional to 2,183.57, 3,013.16 and 1,299.21

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Solution

The fourth proportional to 2,183.57, 3,013.16 and 1,299.21 is: 1,792.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,183.57 : 3,013.16 = 1,299.21 : x
  2. Step 2: Convert to fraction form
    2,183.57/3,013.16 = 1,299.21/x
  3. Step 3: Cross multiply
    2,183.57x = 3,013.16 × 1,299.21
  4. Step 4: Simplify right side
    2,183.57x = 3,914,712.54
  5. Step 5: Solve for x
    x = 3,914,712.54/2,183.57
  6. Step 6: Final answer
    x = 1,792.80

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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.