Home / 3,223.19-4,830.50-2,111.20

Finding the Fourth Proportional to 3,223.19, 4,830.50 and 2,111.20

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Solution

The fourth proportional to 3,223.19, 4,830.50 and 2,111.20 is: 3,163.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,223.19 : 4,830.50 = 2,111.20 : x
  2. Step 2: Convert to fraction form
    3,223.19/4,830.50 = 2,111.20/x
  3. Step 3: Cross multiply
    3,223.19x = 4,830.50 × 2,111.20
  4. Step 4: Simplify right side
    3,223.19x = 10,198,151.60
  5. Step 5: Solve for x
    x = 10,198,151.60/3,223.19
  6. Step 6: Final answer
    x = 3,163.99

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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.