Home / 3,040.21-4,196.01-1,920.79

Finding the Fourth Proportional to 3,040.21, 4,196.01 and 1,920.79

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Solution

The fourth proportional to 3,040.21, 4,196.01 and 1,920.79 is: 2,651.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,040.21 : 4,196.01 = 1,920.79 : x
  2. Step 2: Convert to fraction form
    3,040.21/4,196.01 = 1,920.79/x
  3. Step 3: Cross multiply
    3,040.21x = 4,196.01 × 1,920.79
  4. Step 4: Simplify right side
    3,040.21x = 8,059,654.05
  5. Step 5: Solve for x
    x = 8,059,654.05/3,040.21
  6. Step 6: Final answer
    x = 2,651.02

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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.