Home / 2,220.12-3,063.60-1,323.84

Finding the Fourth Proportional to 2,220.12, 3,063.60 and 1,323.84

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Solution

The fourth proportional to 2,220.12, 3,063.60 and 1,323.84 is: 1,826.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,220.12 : 3,063.60 = 1,323.84 : x
  2. Step 2: Convert to fraction form
    2,220.12/3,063.60 = 1,323.84/x
  3. Step 3: Cross multiply
    2,220.12x = 3,063.60 × 1,323.84
  4. Step 4: Simplify right side
    2,220.12x = 4,055,716.22
  5. Step 5: Solve for x
    x = 4,055,716.22/2,220.12
  6. Step 6: Final answer
    x = 1,826.80

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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.