Home / 3,919.62-5,406.62-2,575.33

Finding the Fourth Proportional to 3,919.62, 5,406.62 and 2,575.33

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Solution

The fourth proportional to 3,919.62, 5,406.62 and 2,575.33 is: 3,552.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,919.62 : 5,406.62 = 2,575.33 : x
  2. Step 2: Convert to fraction form
    3,919.62/5,406.62 = 2,575.33/x
  3. Step 3: Cross multiply
    3,919.62x = 5,406.62 × 2,575.33
  4. Step 4: Simplify right side
    3,919.62x = 13,923,804.29
  5. Step 5: Solve for x
    x = 13,923,804.29/3,919.62
  6. Step 6: Final answer
    x = 3,552.33

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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.