Home / 3,211.29-4,816.86-1,479.92

Finding the Fourth Proportional to 3,211.29, 4,816.86 and 1,479.92

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Solution

The fourth proportional to 3,211.29, 4,816.86 and 1,479.92 is: 2,219.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,211.29 : 4,816.86 = 1,479.92 : x
  2. Step 2: Convert to fraction form
    3,211.29/4,816.86 = 1,479.92/x
  3. Step 3: Cross multiply
    3,211.29x = 4,816.86 × 1,479.92
  4. Step 4: Simplify right side
    3,211.29x = 7,128,546.14
  5. Step 5: Solve for x
    x = 7,128,546.14/3,211.29
  6. Step 6: Final answer
    x = 2,219.84

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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.