Home / 6,429.62-9,635.67-3,619.80

Finding the Fourth Proportional to 6,429.62, 9,635.67 and 3,619.80

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Solution

The fourth proportional to 6,429.62, 9,635.67 and 3,619.80 is: 5,424.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,429.62 : 9,635.67 = 3,619.80 : x
  2. Step 2: Convert to fraction form
    6,429.62/9,635.67 = 3,619.80/x
  3. Step 3: Cross multiply
    6,429.62x = 9,635.67 × 3,619.80
  4. Step 4: Simplify right side
    6,429.62x = 34,879,186.44
  5. Step 5: Solve for x
    x = 34,879,186.44/6,429.62
  6. Step 6: Final answer
    x = 5,424.77

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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.