Home / 2,261.84-3,390.06-1,286.60

Finding the Fourth Proportional to 2,261.84, 3,390.06 and 1,286.60

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Solution

The fourth proportional to 2,261.84, 3,390.06 and 1,286.60 is: 1,928.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,261.84 : 3,390.06 = 1,286.60 : x
  2. Step 2: Convert to fraction form
    2,261.84/3,390.06 = 1,286.60/x
  3. Step 3: Cross multiply
    2,261.84x = 3,390.06 × 1,286.60
  4. Step 4: Simplify right side
    2,261.84x = 4,361,651.20
  5. Step 5: Solve for x
    x = 4,361,651.20/2,261.84
  6. Step 6: Final answer
    x = 1,928.36

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.