Home / 2,183.86-3,013.50-1,299.49

Finding the Fourth Proportional to 2,183.86, 3,013.50 and 1,299.49

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Solution

The fourth proportional to 2,183.86, 3,013.50 and 1,299.49 is: 1,793.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,183.86 : 3,013.50 = 1,299.49 : x
  2. Step 2: Convert to fraction form
    2,183.86/3,013.50 = 1,299.49/x
  3. Step 3: Cross multiply
    2,183.86x = 3,013.50 × 1,299.49
  4. Step 4: Simplify right side
    2,183.86x = 3,916,027.41
  5. Step 5: Solve for x
    x = 3,916,027.41/2,183.86
  6. Step 6: Final answer
    x = 1,793.17

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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.