Home / 3,261.30-4,891.89-1,069.14

Finding the Fourth Proportional to 3,261.30, 4,891.89 and 1,069.14

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Solution

The fourth proportional to 3,261.30, 4,891.89 and 1,069.14 is: 1,603.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,261.30 : 4,891.89 = 1,069.14 : x
  2. Step 2: Convert to fraction form
    3,261.30/4,891.89 = 1,069.14/x
  3. Step 3: Cross multiply
    3,261.30x = 4,891.89 × 1,069.14
  4. Step 4: Simplify right side
    3,261.30x = 5,230,115.27
  5. Step 5: Solve for x
    x = 5,230,115.27/3,261.30
  6. Step 6: Final answer
    x = 1,603.69

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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.