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Finding the Fourth Proportional to 3,016.90, 4,525.56 and 825.64

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Solution

The fourth proportional to 3,016.90, 4,525.56 and 825.64 is: 1,238.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,016.90 : 4,525.56 = 825.64 : x
  2. Step 2: Convert to fraction form
    3,016.90/4,525.56 = 825.64/x
  3. Step 3: Cross multiply
    3,016.90x = 4,525.56 × 825.64
  4. Step 4: Simplify right side
    3,016.90x = 3,736,483.36
  5. Step 5: Solve for x
    x = 3,736,483.36/3,016.90
  6. Step 6: Final answer
    x = 1,238.52

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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.