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Finding the Fourth Proportional to 2,011.55, 3,016.97 and 550.35

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Solution

The fourth proportional to 2,011.55, 3,016.97 and 550.35 is: 825.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,011.55 : 3,016.97 = 550.35 : x
  2. Step 2: Convert to fraction form
    2,011.55/3,016.97 = 550.35/x
  3. Step 3: Cross multiply
    2,011.55x = 3,016.97 × 550.35
  4. Step 4: Simplify right side
    2,011.55x = 1,660,388.75
  5. Step 5: Solve for x
    x = 1,660,388.75/2,011.55
  6. Step 6: Final answer
    x = 825.43

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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.