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Finding the Fourth Proportional to 3,846.40, 5,769.42 and 1,073.01

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Solution

The fourth proportional to 3,846.40, 5,769.42 and 1,073.01 is: 1,609.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,846.40 : 5,769.42 = 1,073.01 : x
  2. Step 2: Convert to fraction form
    3,846.40/5,769.42 = 1,073.01/x
  3. Step 3: Cross multiply
    3,846.40x = 5,769.42 × 1,073.01
  4. Step 4: Simplify right side
    3,846.40x = 6,190,645.35
  5. Step 5: Solve for x
    x = 6,190,645.35/3,846.40
  6. Step 6: Final answer
    x = 1,609.46

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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.