Home / 3,808.26-5,257.64-2,856.38

Finding the Fourth Proportional to 3,808.26, 5,257.64 and 2,856.38

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Solution

The fourth proportional to 3,808.26, 5,257.64 and 2,856.38 is: 3,943.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,808.26 : 5,257.64 = 2,856.38 : x
  2. Step 2: Convert to fraction form
    3,808.26/5,257.64 = 2,856.38/x
  3. Step 3: Cross multiply
    3,808.26x = 5,257.64 × 2,856.38
  4. Step 4: Simplify right side
    3,808.26x = 15,017,798.60
  5. Step 5: Solve for x
    x = 15,017,798.60/3,808.26
  6. Step 6: Final answer
    x = 3,943.48

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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.