Home / 2,122.04-3,183.16-823.34

Finding the Fourth Proportional to 2,122.04, 3,183.16 and 823.34

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Solution

The fourth proportional to 2,122.04, 3,183.16 and 823.34 is: 1,235.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,122.04 : 3,183.16 = 823.34 : x
  2. Step 2: Convert to fraction form
    2,122.04/3,183.16 = 823.34/x
  3. Step 3: Cross multiply
    2,122.04x = 3,183.16 × 823.34
  4. Step 4: Simplify right side
    2,122.04x = 2,620,822.95
  5. Step 5: Solve for x
    x = 2,620,822.95/2,122.04
  6. Step 6: Final answer
    x = 1,235.05

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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.