Home / 6,418.64-9,609.36-3,945.96

Finding the Fourth Proportional to 6,418.64, 9,609.36 and 3,945.96

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Solution

The fourth proportional to 6,418.64, 9,609.36 and 3,945.96 is: 5,907.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,418.64 : 9,609.36 = 3,945.96 : x
  2. Step 2: Convert to fraction form
    6,418.64/9,609.36 = 3,945.96/x
  3. Step 3: Cross multiply
    6,418.64x = 9,609.36 × 3,945.96
  4. Step 4: Simplify right side
    6,418.64x = 37,918,150.19
  5. Step 5: Solve for x
    x = 37,918,150.19/6,418.64
  6. Step 6: Final answer
    x = 5,907.51

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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.