Home / 2,183.69-3,013.49-1,397.79

Finding the Fourth Proportional to 2,183.69, 3,013.49 and 1,397.79

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Solution

The fourth proportional to 2,183.69, 3,013.49 and 1,397.79 is: 1,928.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,183.69 : 3,013.49 = 1,397.79 : x
  2. Step 2: Convert to fraction form
    2,183.69/3,013.49 = 1,397.79/x
  3. Step 3: Cross multiply
    2,183.69x = 3,013.49 × 1,397.79
  4. Step 4: Simplify right side
    2,183.69x = 4,212,226.19
  5. Step 5: Solve for x
    x = 4,212,226.19/2,183.69
  6. Step 6: Final answer
    x = 1,928.95

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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.