Home / 3,321.04-4,979.02-2,152.21

Finding the Fourth Proportional to 3,321.04, 4,979.02 and 2,152.21

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Solution

The fourth proportional to 3,321.04, 4,979.02 and 2,152.21 is: 3,226.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,321.04 : 4,979.02 = 2,152.21 : x
  2. Step 2: Convert to fraction form
    3,321.04/4,979.02 = 2,152.21/x
  3. Step 3: Cross multiply
    3,321.04x = 4,979.02 × 2,152.21
  4. Step 4: Simplify right side
    3,321.04x = 10,715,860.98
  5. Step 5: Solve for x
    x = 10,715,860.98/3,321.04
  6. Step 6: Final answer
    x = 3,226.66

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1.5x scale

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.