Home / 3,907.02-5,379.19-3,163.44

Finding the Fourth Proportional to 3,907.02, 5,379.19 and 3,163.44

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Solution

The fourth proportional to 3,907.02, 5,379.19 and 3,163.44 is: 4,355.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,907.02 : 5,379.19 = 3,163.44 : x
  2. Step 2: Convert to fraction form
    3,907.02/5,379.19 = 3,163.44/x
  3. Step 3: Cross multiply
    3,907.02x = 5,379.19 × 3,163.44
  4. Step 4: Simplify right side
    3,907.02x = 17,016,744.81
  5. Step 5: Solve for x
    x = 17,016,744.81/3,907.02
  6. Step 6: Final answer
    x = 4,355.43

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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.