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Finding the Fourth Proportional to 2,010, 3,016.28 and 855.75

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Solution

The fourth proportional to 2,010, 3,016.28 and 855.75 is: 1,284.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,010 : 3,016.28 = 855.75 : x
  2. Step 2: Convert to fraction form
    2,010/3,016.28 = 855.75/x
  3. Step 3: Cross multiply
    2,010x = 3,016.28 × 855.75
  4. Step 4: Simplify right side
    2,010x = 2,581,183.75
  5. Step 5: Solve for x
    x = 2,581,183.75/2,010
  6. Step 6: Final answer
    x = 1,284.17

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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.