Home / 2,183.21-3,012.99-1,251.71

Finding the Fourth Proportional to 2,183.21, 3,012.99 and 1,251.71

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Solution

The fourth proportional to 2,183.21, 3,012.99 and 1,251.71 is: 1,727.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,183.21 : 3,012.99 = 1,251.71 : x
  2. Step 2: Convert to fraction form
    2,183.21/3,012.99 = 1,251.71/x
  3. Step 3: Cross multiply
    2,183.21x = 3,012.99 × 1,251.71
  4. Step 4: Simplify right side
    2,183.21x = 3,771,389.71
  5. Step 5: Solve for x
    x = 3,771,389.71/2,183.21
  6. Step 6: Final answer
    x = 1,727.45

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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.