Home / 3,907.35-5,391.84-2,229.03

Finding the Fourth Proportional to 3,907.35, 5,391.84 and 2,229.03

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Solution

The fourth proportional to 3,907.35, 5,391.84 and 2,229.03 is: 3,075.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,907.35 : 5,391.84 = 2,229.03 : x
  2. Step 2: Convert to fraction form
    3,907.35/5,391.84 = 2,229.03/x
  3. Step 3: Cross multiply
    3,907.35x = 5,391.84 × 2,229.03
  4. Step 4: Simplify right side
    3,907.35x = 12,018,573.12
  5. Step 5: Solve for x
    x = 12,018,573.12/3,907.35
  6. Step 6: Final answer
    x = 3,075.89

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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.