Home / 3,181.26-4,390.19-1,922.14

Finding the Fourth Proportional to 3,181.26, 4,390.19 and 1,922.14

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Solution

The fourth proportional to 3,181.26, 4,390.19 and 1,922.14 is: 2,652.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,181.26 : 4,390.19 = 1,922.14 : x
  2. Step 2: Convert to fraction form
    3,181.26/4,390.19 = 1,922.14/x
  3. Step 3: Cross multiply
    3,181.26x = 4,390.19 × 1,922.14
  4. Step 4: Simplify right side
    3,181.26x = 8,438,559.81
  5. Step 5: Solve for x
    x = 8,438,559.81/3,181.26
  6. Step 6: Final answer
    x = 2,652.58

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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.