Home / 3,907.58-5,391.14-2,228.72

Finding the Fourth Proportional to 3,907.58, 5,391.14 and 2,228.72

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Solution

The fourth proportional to 3,907.58, 5,391.14 and 2,228.72 is: 3,074.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,907.58 : 5,391.14 = 2,228.72 : x
  2. Step 2: Convert to fraction form
    3,907.58/5,391.14 = 2,228.72/x
  3. Step 3: Cross multiply
    3,907.58x = 5,391.14 × 2,228.72
  4. Step 4: Simplify right side
    3,907.58x = 12,015,303.44
  5. Step 5: Solve for x
    x = 12,015,303.44/3,907.58
  6. Step 6: Final answer
    x = 3,074.87

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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.