Home / 3,211.55-4,816.82-1,019.79

Finding the Fourth Proportional to 3,211.55, 4,816.82 and 1,019.79

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Solution

The fourth proportional to 3,211.55, 4,816.82 and 1,019.79 is: 1,529.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,211.55 : 4,816.82 = 1,019.79 : x
  2. Step 2: Convert to fraction form
    3,211.55/4,816.82 = 1,019.79/x
  3. Step 3: Cross multiply
    3,211.55x = 4,816.82 × 1,019.79
  4. Step 4: Simplify right side
    3,211.55x = 4,912,141.68
  5. Step 5: Solve for x
    x = 4,912,141.68/3,211.55
  6. Step 6: Final answer
    x = 1,529.52

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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.