Home / 4,081-6,121.48-1,159.31

Finding the Fourth Proportional to 4,081, 6,121.48 and 1,159.31

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Solution

The fourth proportional to 4,081, 6,121.48 and 1,159.31 is: 1,738.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,081 : 6,121.48 = 1,159.31 : x
  2. Step 2: Convert to fraction form
    4,081/6,121.48 = 1,159.31/x
  3. Step 3: Cross multiply
    4,081x = 6,121.48 × 1,159.31
  4. Step 4: Simplify right side
    4,081x = 7,096,692.98
  5. Step 5: Solve for x
    x = 7,096,692.98/4,081
  6. Step 6: Final answer
    x = 1,738.96

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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.