Home / 2,663.35-3,673.96-1,991.86

Finding the Fourth Proportional to 2,663.35, 3,673.96 and 1,991.86

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Solution

The fourth proportional to 2,663.35, 3,673.96 and 1,991.86 is: 2,747.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,663.35 : 3,673.96 = 1,991.86 : x
  2. Step 2: Convert to fraction form
    2,663.35/3,673.96 = 1,991.86/x
  3. Step 3: Cross multiply
    2,663.35x = 3,673.96 × 1,991.86
  4. Step 4: Simplify right side
    2,663.35x = 7,318,013.97
  5. Step 5: Solve for x
    x = 7,318,013.97/2,663.35
  6. Step 6: Final answer
    x = 2,747.67

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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.