Home / 3,190.22-4,779.09-2,091.25

Finding the Fourth Proportional to 3,190.22, 4,779.09 and 2,091.25

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Solution

The fourth proportional to 3,190.22, 4,779.09 and 2,091.25 is: 3,132.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,190.22 : 4,779.09 = 2,091.25 : x
  2. Step 2: Convert to fraction form
    3,190.22/4,779.09 = 2,091.25/x
  3. Step 3: Cross multiply
    3,190.22x = 4,779.09 × 2,091.25
  4. Step 4: Simplify right side
    3,190.22x = 9,994,271.96
  5. Step 5: Solve for x
    x = 9,994,271.96/3,190.22
  6. Step 6: Final answer
    x = 3,132.78

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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.