Home / 4,311.80-6,463.62-1,388.60

Finding the Fourth Proportional to 4,311.80, 6,463.62 and 1,388.60

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Solution

The fourth proportional to 4,311.80, 6,463.62 and 1,388.60 is: 2,081.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,311.80 : 6,463.62 = 1,388.60 : x
  2. Step 2: Convert to fraction form
    4,311.80/6,463.62 = 1,388.60/x
  3. Step 3: Cross multiply
    4,311.80x = 6,463.62 × 1,388.60
  4. Step 4: Simplify right side
    4,311.80x = 8,975,382.73
  5. Step 5: Solve for x
    x = 8,975,382.73/4,311.80
  6. Step 6: Final answer
    x = 2,081.59

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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.