Home / 3,211.30-4,816.88-1,479.93

Finding the Fourth Proportional to 3,211.30, 4,816.88 and 1,479.93

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Solution

The fourth proportional to 3,211.30, 4,816.88 and 1,479.93 is: 2,219.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,211.30 : 4,816.88 = 1,479.93 : x
  2. Step 2: Convert to fraction form
    3,211.30/4,816.88 = 1,479.93/x
  3. Step 3: Cross multiply
    3,211.30x = 4,816.88 × 1,479.93
  4. Step 4: Simplify right side
    3,211.30x = 7,128,624.83
  5. Step 5: Solve for x
    x = 7,128,624.83/3,211.30
  6. Step 6: Final answer
    x = 2,219.86

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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.