Home / 5,811.40-8,021.46-3,823.48

Finding the Fourth Proportional to 5,811.40, 8,021.46 and 3,823.48

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Solution

The fourth proportional to 5,811.40, 8,021.46 and 3,823.48 is: 5,277.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,811.40 : 8,021.46 = 3,823.48 : x
  2. Step 2: Convert to fraction form
    5,811.40/8,021.46 = 3,823.48/x
  3. Step 3: Cross multiply
    5,811.40x = 8,021.46 × 3,823.48
  4. Step 4: Simplify right side
    5,811.40x = 30,669,891.88
  5. Step 5: Solve for x
    x = 30,669,891.88/5,811.40
  6. Step 6: Final answer
    x = 5,277.54

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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.