Home / 3,782.15-5,673.83-1,317.67

Finding the Fourth Proportional to 3,782.15, 5,673.83 and 1,317.67

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Solution

The fourth proportional to 3,782.15, 5,673.83 and 1,317.67 is: 1,976.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,782.15 : 5,673.83 = 1,317.67 : x
  2. Step 2: Convert to fraction form
    3,782.15/5,673.83 = 1,317.67/x
  3. Step 3: Cross multiply
    3,782.15x = 5,673.83 × 1,317.67
  4. Step 4: Simplify right side
    3,782.15x = 7,476,218.10
  5. Step 5: Solve for x
    x = 7,476,218.10/3,782.15
  6. Step 6: Final answer
    x = 1,976.71

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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.