Home / 2,421.44-3,634.43-1,189.73

Finding the Fourth Proportional to 2,421.44, 3,634.43 and 1,189.73

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Solution

The fourth proportional to 2,421.44, 3,634.43 and 1,189.73 is: 1,785.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,421.44 : 3,634.43 = 1,189.73 : x
  2. Step 2: Convert to fraction form
    2,421.44/3,634.43 = 1,189.73/x
  3. Step 3: Cross multiply
    2,421.44x = 3,634.43 × 1,189.73
  4. Step 4: Simplify right side
    2,421.44x = 4,323,986.67
  5. Step 5: Solve for x
    x = 4,323,986.67/2,421.44
  6. Step 6: Final answer
    x = 1,785.71

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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.