Home / 3,318.36-4,568.94-2,819.88

Finding the Fourth Proportional to 3,318.36, 4,568.94 and 2,819.88

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Solution

The fourth proportional to 3,318.36, 4,568.94 and 2,819.88 is: 3,882.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,318.36 : 4,568.94 = 2,819.88 : x
  2. Step 2: Convert to fraction form
    3,318.36/4,568.94 = 2,819.88/x
  3. Step 3: Cross multiply
    3,318.36x = 4,568.94 × 2,819.88
  4. Step 4: Simplify right side
    3,318.36x = 12,883,862.53
  5. Step 5: Solve for x
    x = 12,883,862.53/3,318.36
  6. Step 6: Final answer
    x = 3,882.60

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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.