Home / 3,609.21-5,414.49-1,143.81

Finding the Fourth Proportional to 3,609.21, 5,414.49 and 1,143.81

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Solution

The fourth proportional to 3,609.21, 5,414.49 and 1,143.81 is: 1,715.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,609.21 : 5,414.49 = 1,143.81 : x
  2. Step 2: Convert to fraction form
    3,609.21/5,414.49 = 1,143.81/x
  3. Step 3: Cross multiply
    3,609.21x = 5,414.49 × 1,143.81
  4. Step 4: Simplify right side
    3,609.21x = 6,193,147.81
  5. Step 5: Solve for x
    x = 6,193,147.81/3,609.21
  6. Step 6: Final answer
    x = 1,715.93

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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.