Home / 3,188.67-4,782.87-1,109.14

Finding the Fourth Proportional to 3,188.67, 4,782.87 and 1,109.14

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Solution

The fourth proportional to 3,188.67, 4,782.87 and 1,109.14 is: 1,663.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,188.67 : 4,782.87 = 1,109.14 : x
  2. Step 2: Convert to fraction form
    3,188.67/4,782.87 = 1,109.14/x
  3. Step 3: Cross multiply
    3,188.67x = 4,782.87 × 1,109.14
  4. Step 4: Simplify right side
    3,188.67x = 5,304,884.39
  5. Step 5: Solve for x
    x = 5,304,884.39/3,188.67
  6. Step 6: Final answer
    x = 1,663.67

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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.