Home / 2,197.73-3,291.39-1,907.60

Finding the Fourth Proportional to 2,197.73, 3,291.39 and 1,907.60

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Solution

The fourth proportional to 2,197.73, 3,291.39 and 1,907.60 is: 2,856.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,197.73 : 3,291.39 = 1,907.60 : x
  2. Step 2: Convert to fraction form
    2,197.73/3,291.39 = 1,907.60/x
  3. Step 3: Cross multiply
    2,197.73x = 3,291.39 × 1,907.60
  4. Step 4: Simplify right side
    2,197.73x = 6,278,639.11
  5. Step 5: Solve for x
    x = 6,278,639.11/2,197.73
  6. Step 6: Final answer
    x = 2,856.88

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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.