Home / 5,525.80-7,621.22-3,907.85

Finding the Fourth Proportional to 5,525.80, 7,621.22 and 3,907.85

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Solution

The fourth proportional to 5,525.80, 7,621.22 and 3,907.85 is: 5,389.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,525.80 : 7,621.22 = 3,907.85 : x
  2. Step 2: Convert to fraction form
    5,525.80/7,621.22 = 3,907.85/x
  3. Step 3: Cross multiply
    5,525.80x = 7,621.22 × 3,907.85
  4. Step 4: Simplify right side
    5,525.80x = 29,782,584.58
  5. Step 5: Solve for x
    x = 29,782,584.58/5,525.80
  6. Step 6: Final answer
    x = 5,389.73

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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.