Home / 3,879.09-5,818.20-3,650.67

Finding the Fourth Proportional to 3,879.09, 5,818.20 and 3,650.67

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Solution

The fourth proportional to 3,879.09, 5,818.20 and 3,650.67 is: 5,475.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,879.09 : 5,818.20 = 3,650.67 : x
  2. Step 2: Convert to fraction form
    3,879.09/5,818.20 = 3,650.67/x
  3. Step 3: Cross multiply
    3,879.09x = 5,818.20 × 3,650.67
  4. Step 4: Simplify right side
    3,879.09x = 21,240,328.19
  5. Step 5: Solve for x
    x = 21,240,328.19/3,879.09
  6. Step 6: Final answer
    x = 5,475.60

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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.