Home / 3,311.07-4,568.78-1,819.05

Finding the Fourth Proportional to 3,311.07, 4,568.78 and 1,819.05

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Solution

The fourth proportional to 3,311.07, 4,568.78 and 1,819.05 is: 2,510.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,311.07 : 4,568.78 = 1,819.05 : x
  2. Step 2: Convert to fraction form
    3,311.07/4,568.78 = 1,819.05/x
  3. Step 3: Cross multiply
    3,311.07x = 4,568.78 × 1,819.05
  4. Step 4: Simplify right side
    3,311.07x = 8,310,843.81
  5. Step 5: Solve for x
    x = 8,310,843.81/3,311.07
  6. Step 6: Final answer
    x = 2,510.02

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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.