Home / 3,031.78-4,183.81-1,705.48

Finding the Fourth Proportional to 3,031.78, 4,183.81 and 1,705.48

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Solution

The fourth proportional to 3,031.78, 4,183.81 and 1,705.48 is: 2,353.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,031.78 : 4,183.81 = 1,705.48 : x
  2. Step 2: Convert to fraction form
    3,031.78/4,183.81 = 1,705.48/x
  3. Step 3: Cross multiply
    3,031.78x = 4,183.81 × 1,705.48
  4. Step 4: Simplify right side
    3,031.78x = 7,135,395.75
  5. Step 5: Solve for x
    x = 7,135,395.75/3,031.78
  6. Step 6: Final answer
    x = 2,353.54

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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.