Home / 6,398.73-8,830.26-3,880.19

Finding the Fourth Proportional to 6,398.73, 8,830.26 and 3,880.19

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Solution

The fourth proportional to 6,398.73, 8,830.26 and 3,880.19 is: 5,354.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,398.73 : 8,830.26 = 3,880.19 : x
  2. Step 2: Convert to fraction form
    6,398.73/8,830.26 = 3,880.19/x
  3. Step 3: Cross multiply
    6,398.73x = 8,830.26 × 3,880.19
  4. Step 4: Simplify right side
    6,398.73x = 34,263,086.55
  5. Step 5: Solve for x
    x = 34,263,086.55/6,398.73
  6. Step 6: Final answer
    x = 5,354.67

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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.