Home / 3,907.12-5,392.08-2,229.07

Finding the Fourth Proportional to 3,907.12, 5,392.08 and 2,229.07

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Solution

The fourth proportional to 3,907.12, 5,392.08 and 2,229.07 is: 3,076.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,907.12 : 5,392.08 = 2,229.07 : x
  2. Step 2: Convert to fraction form
    3,907.12/5,392.08 = 2,229.07/x
  3. Step 3: Cross multiply
    3,907.12x = 5,392.08 × 2,229.07
  4. Step 4: Simplify right side
    3,907.12x = 12,019,323.77
  5. Step 5: Solve for x
    x = 12,019,323.77/3,907.12
  6. Step 6: Final answer
    x = 3,076.26

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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.