Home / 3,794.31-5,235.99-2,115.57

Finding the Fourth Proportional to 3,794.31, 5,235.99 and 2,115.57

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Solution

The fourth proportional to 3,794.31, 5,235.99 and 2,115.57 is: 2,919.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,794.31 : 5,235.99 = 2,115.57 : x
  2. Step 2: Convert to fraction form
    3,794.31/5,235.99 = 2,115.57/x
  3. Step 3: Cross multiply
    3,794.31x = 5,235.99 × 2,115.57
  4. Step 4: Simplify right side
    3,794.31x = 11,077,103.36
  5. Step 5: Solve for x
    x = 11,077,103.36/3,794.31
  6. Step 6: Final answer
    x = 2,919.40

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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.