Home / 3,211.25-4,816.83-1,019.91

Finding the Fourth Proportional to 3,211.25, 4,816.83 and 1,019.91

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Solution

The fourth proportional to 3,211.25, 4,816.83 and 1,019.91 is: 1,529.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,211.25 : 4,816.83 = 1,019.91 : x
  2. Step 2: Convert to fraction form
    3,211.25/4,816.83 = 1,019.91/x
  3. Step 3: Cross multiply
    3,211.25x = 4,816.83 × 1,019.91
  4. Step 4: Simplify right side
    3,211.25x = 4,912,733.09
  5. Step 5: Solve for x
    x = 4,912,733.09/3,211.25
  6. Step 6: Final answer
    x = 1,529.85

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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.