Home / 2,311.74-3,189.09-2,222.22

Finding the Fourth Proportional to 2,311.74, 3,189.09 and 2,222.22

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Solution

The fourth proportional to 2,311.74, 3,189.09 and 2,222.22 is: 3,065.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,311.74 : 3,189.09 = 2,222.22 : x
  2. Step 2: Convert to fraction form
    2,311.74/3,189.09 = 2,222.22/x
  3. Step 3: Cross multiply
    2,311.74x = 3,189.09 × 2,222.22
  4. Step 4: Simplify right side
    2,311.74x = 7,086,862.00
  5. Step 5: Solve for x
    x = 7,086,862.00/2,311.74
  6. Step 6: Final answer
    x = 3,065.60

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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.