Home / 7,771.90-11,659.67-2,225.09

Finding the Fourth Proportional to 7,771.90, 11,659.67 and 2,225.09

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Solution

The fourth proportional to 7,771.90, 11,659.67 and 2,225.09 is: 3,338.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,771.90 : 11,659.67 = 2,225.09 : x
  2. Step 2: Convert to fraction form
    7,771.90/11,659.67 = 2,225.09/x
  3. Step 3: Cross multiply
    7,771.90x = 11,659.67 × 2,225.09
  4. Step 4: Simplify right side
    7,771.90x = 25,943,745.70
  5. Step 5: Solve for x
    x = 25,943,745.70/7,771.90
  6. Step 6: Final answer
    x = 3,338.15

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1.5x scale

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.