Home / 6,388.58-8,816.26-3,556.22

Finding the Fourth Proportional to 6,388.58, 8,816.26 and 3,556.22

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Solution

The fourth proportional to 6,388.58, 8,816.26 and 3,556.22 is: 4,907.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,388.58 : 8,816.26 = 3,556.22 : x
  2. Step 2: Convert to fraction form
    6,388.58/8,816.26 = 3,556.22/x
  3. Step 3: Cross multiply
    6,388.58x = 8,816.26 × 3,556.22
  4. Step 4: Simplify right side
    6,388.58x = 31,352,560.14
  5. Step 5: Solve for x
    x = 31,352,560.14/6,388.58
  6. Step 6: Final answer
    x = 4,907.59

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1.5x scale

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.