Home / 3,321.21-4,550.08-3,196.65

Finding the Fourth Proportional to 3,321.21, 4,550.08 and 3,196.65

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Solution

The fourth proportional to 3,321.21, 4,550.08 and 3,196.65 is: 4,379.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,321.21 : 4,550.08 = 3,196.65 : x
  2. Step 2: Convert to fraction form
    3,321.21/4,550.08 = 3,196.65/x
  3. Step 3: Cross multiply
    3,321.21x = 4,550.08 × 3,196.65
  4. Step 4: Simplify right side
    3,321.21x = 14,545,005.24
  5. Step 5: Solve for x
    x = 14,545,005.24/3,321.21
  6. Step 6: Final answer
    x = 4,379.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.