Home / 2,690.06-4,035.09-1,228.82

Finding the Fourth Proportional to 2,690.06, 4,035.09 and 1,228.82

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Solution

The fourth proportional to 2,690.06, 4,035.09 and 1,228.82 is: 1,843.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,690.06 : 4,035.09 = 1,228.82 : x
  2. Step 2: Convert to fraction form
    2,690.06/4,035.09 = 1,228.82/x
  3. Step 3: Cross multiply
    2,690.06x = 4,035.09 × 1,228.82
  4. Step 4: Simplify right side
    2,690.06x = 4,958,399.29
  5. Step 5: Solve for x
    x = 4,958,399.29/2,690.06
  6. Step 6: Final answer
    x = 1,843.23

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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.