Home / 4,261.44-6,389.88-1,338.96

Finding the Fourth Proportional to 4,261.44, 6,389.88 and 1,338.96

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Solution

The fourth proportional to 4,261.44, 6,389.88 and 1,338.96 is: 2,007.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,261.44 : 6,389.88 = 1,338.96 : x
  2. Step 2: Convert to fraction form
    4,261.44/6,389.88 = 1,338.96/x
  3. Step 3: Cross multiply
    4,261.44x = 6,389.88 × 1,338.96
  4. Step 4: Simplify right side
    4,261.44x = 8,555,793.72
  5. Step 5: Solve for x
    x = 8,555,793.72/4,261.44
  6. Step 6: Final answer
    x = 2,007.72

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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.