Home / 2,836.46-3,914.80-2,122.22

Finding the Fourth Proportional to 2,836.46, 3,914.80 and 2,122.22

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Solution

The fourth proportional to 2,836.46, 3,914.80 and 2,122.22 is: 2,929.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,836.46 : 3,914.80 = 2,122.22 : x
  2. Step 2: Convert to fraction form
    2,836.46/3,914.80 = 2,122.22/x
  3. Step 3: Cross multiply
    2,836.46x = 3,914.80 × 2,122.22
  4. Step 4: Simplify right side
    2,836.46x = 8,308,066.86
  5. Step 5: Solve for x
    x = 8,308,066.86/2,836.46
  6. Step 6: Final answer
    x = 2,929.03

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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.