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Finding the Fourth Proportional to 4,081, 6,121.52 and 1,003

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Solution

The fourth proportional to 4,081, 6,121.52 and 1,003 is: 1,504.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,081 : 6,121.52 = 1,003 : x
  2. Step 2: Convert to fraction form
    4,081/6,121.52 = 1,003/x
  3. Step 3: Cross multiply
    4,081x = 6,121.52 × 1,003
  4. Step 4: Simplify right side
    4,081x = 6,139,884.56
  5. Step 5: Solve for x
    x = 6,139,884.56/4,081
  6. Step 6: Final answer
    x = 1,504.50

Related Problems

Find fourth proportional to 2,040.50, 3,060.76 and 501.50
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Double scale
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Similar ratio
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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.