Home / 2,815.39-3,882.86-1,696.09

Finding the Fourth Proportional to 2,815.39, 3,882.86 and 1,696.09

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Solution

The fourth proportional to 2,815.39, 3,882.86 and 1,696.09 is: 2,339.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,815.39 : 3,882.86 = 1,696.09 : x
  2. Step 2: Convert to fraction form
    2,815.39/3,882.86 = 1,696.09/x
  3. Step 3: Cross multiply
    2,815.39x = 3,882.86 × 1,696.09
  4. Step 4: Simplify right side
    2,815.39x = 6,585,697.89
  5. Step 5: Solve for x
    x = 6,585,697.89/2,815.39
  6. Step 6: Final answer
    x = 2,339.18

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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.