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Finding the Fourth Proportional to 3,016.78, 4,525.23 and 825.56

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Solution

The fourth proportional to 3,016.78, 4,525.23 and 825.56 is: 1,238.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,016.78 : 4,525.23 = 825.56 : x
  2. Step 2: Convert to fraction form
    3,016.78/4,525.23 = 825.56/x
  3. Step 3: Cross multiply
    3,016.78x = 4,525.23 × 825.56
  4. Step 4: Simplify right side
    3,016.78x = 3,735,848.88
  5. Step 5: Solve for x
    x = 3,735,848.88/3,016.78
  6. Step 6: Final answer
    x = 1,238.36

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1.5x scale

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.