Home / 2,188.27-3,276.73-1,213.03

Finding the Fourth Proportional to 2,188.27, 3,276.73 and 1,213.03

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Solution

The fourth proportional to 2,188.27, 3,276.73 and 1,213.03 is: 1,816.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,188.27 : 3,276.73 = 1,213.03 : x
  2. Step 2: Convert to fraction form
    2,188.27/3,276.73 = 1,213.03/x
  3. Step 3: Cross multiply
    2,188.27x = 3,276.73 × 1,213.03
  4. Step 4: Simplify right side
    2,188.27x = 3,974,771.79
  5. Step 5: Solve for x
    x = 3,974,771.79/2,188.27
  6. Step 6: Final answer
    x = 1,816.40

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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.