Home / 3,181.67-4,390.96-1,765.81

Finding the Fourth Proportional to 3,181.67, 4,390.96 and 1,765.81

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Solution

The fourth proportional to 3,181.67, 4,390.96 and 1,765.81 is: 2,436.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,181.67 : 4,390.96 = 1,765.81 : x
  2. Step 2: Convert to fraction form
    3,181.67/4,390.96 = 1,765.81/x
  3. Step 3: Cross multiply
    3,181.67x = 4,390.96 × 1,765.81
  4. Step 4: Simplify right side
    3,181.67x = 7,753,585.69
  5. Step 5: Solve for x
    x = 7,753,585.69/3,181.67
  6. Step 6: Final answer
    x = 2,436.96

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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.