Home / 2,183.78-3,276.21-723.04

Finding the Fourth Proportional to 2,183.78, 3,276.21 and 723.04

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Solution

The fourth proportional to 2,183.78, 3,276.21 and 723.04 is: 1,084.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,183.78 : 3,276.21 = 723.04 : x
  2. Step 2: Convert to fraction form
    2,183.78/3,276.21 = 723.04/x
  3. Step 3: Cross multiply
    2,183.78x = 3,276.21 × 723.04
  4. Step 4: Simplify right side
    2,183.78x = 2,368,830.88
  5. Step 5: Solve for x
    x = 2,368,830.88/2,183.78
  6. Step 6: Final answer
    x = 1,084.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.