Home / 4,099.80-6,148.26-1,909.56

Finding the Fourth Proportional to 4,099.80, 6,148.26 and 1,909.56

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Solution

The fourth proportional to 4,099.80, 6,148.26 and 1,909.56 is: 2,863.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,099.80 : 6,148.26 = 1,909.56 : x
  2. Step 2: Convert to fraction form
    4,099.80/6,148.26 = 1,909.56/x
  3. Step 3: Cross multiply
    4,099.80x = 6,148.26 × 1,909.56
  4. Step 4: Simplify right side
    4,099.80x = 11,740,471.37
  5. Step 5: Solve for x
    x = 11,740,471.37/4,099.80
  6. Step 6: Final answer
    x = 2,863.67

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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.