Home / 3,215.25-4,434-2,097.05

Finding the Fourth Proportional to 3,215.25, 4,434 and 2,097.05

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Solution

The fourth proportional to 3,215.25, 4,434 and 2,097.05 is: 2,891.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,215.25 : 4,434 = 2,097.05 : x
  2. Step 2: Convert to fraction form
    3,215.25/4,434 = 2,097.05/x
  3. Step 3: Cross multiply
    3,215.25x = 4,434 × 2,097.05
  4. Step 4: Simplify right side
    3,215.25x = 9,298,297.53
  5. Step 5: Solve for x
    x = 9,298,297.53/3,215.25
  6. Step 6: Final answer
    x = 2,891.94

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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.