Home / 3,210.12-4,815.83-1,824.12

Finding the Fourth Proportional to 3,210.12, 4,815.83 and 1,824.12

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Solution

The fourth proportional to 3,210.12, 4,815.83 and 1,824.12 is: 2,736.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,210.12 : 4,815.83 = 1,824.12 : x
  2. Step 2: Convert to fraction form
    3,210.12/4,815.83 = 1,824.12/x
  3. Step 3: Cross multiply
    3,210.12x = 4,815.83 × 1,824.12
  4. Step 4: Simplify right side
    3,210.12x = 8,784,651.82
  5. Step 5: Solve for x
    x = 8,784,651.82/3,210.12
  6. Step 6: Final answer
    x = 2,736.55

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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.