Home / 2,208.20-3,047.22-1,323.80

Finding the Fourth Proportional to 2,208.20, 3,047.22 and 1,323.80

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Solution

The fourth proportional to 2,208.20, 3,047.22 and 1,323.80 is: 1,826.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,208.20 : 3,047.22 = 1,323.80 : x
  2. Step 2: Convert to fraction form
    2,208.20/3,047.22 = 1,323.80/x
  3. Step 3: Cross multiply
    2,208.20x = 3,047.22 × 1,323.80
  4. Step 4: Simplify right side
    2,208.20x = 4,033,909.84
  5. Step 5: Solve for x
    x = 4,033,909.84/2,208.20
  6. Step 6: Final answer
    x = 1,826.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.