Home / 3,211.26-4,816.82-1,479.89

Finding the Fourth Proportional to 3,211.26, 4,816.82 and 1,479.89

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Solution

The fourth proportional to 3,211.26, 4,816.82 and 1,479.89 is: 2,219.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,211.26 : 4,816.82 = 1,479.89 : x
  2. Step 2: Convert to fraction form
    3,211.26/4,816.82 = 1,479.89/x
  3. Step 3: Cross multiply
    3,211.26x = 4,816.82 × 1,479.89
  4. Step 4: Simplify right side
    3,211.26x = 7,128,332.27
  5. Step 5: Solve for x
    x = 7,128,332.27/3,211.26
  6. Step 6: Final answer
    x = 2,219.79

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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.