Home / 6,399.27-8,830.26-3,881.97

Finding the Fourth Proportional to 6,399.27, 8,830.26 and 3,881.97

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Solution

The fourth proportional to 6,399.27, 8,830.26 and 3,881.97 is: 5,356.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,399.27 : 8,830.26 = 3,881.97 : x
  2. Step 2: Convert to fraction form
    6,399.27/8,830.26 = 3,881.97/x
  3. Step 3: Cross multiply
    6,399.27x = 8,830.26 × 3,881.97
  4. Step 4: Simplify right side
    6,399.27x = 34,278,804.41
  5. Step 5: Solve for x
    x = 34,278,804.41/6,399.27
  6. Step 6: Final answer
    x = 5,356.67

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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.