Home / 3,895.42-5,375.54-2,216.90

Finding the Fourth Proportional to 3,895.42, 5,375.54 and 2,216.90

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Solution

The fourth proportional to 3,895.42, 5,375.54 and 2,216.90 is: 3,059.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,895.42 : 5,375.54 = 2,216.90 : x
  2. Step 2: Convert to fraction form
    3,895.42/5,375.54 = 2,216.90/x
  3. Step 3: Cross multiply
    3,895.42x = 5,375.54 × 2,216.90
  4. Step 4: Simplify right side
    3,895.42x = 11,917,034.63
  5. Step 5: Solve for x
    x = 11,917,034.63/3,895.42
  6. Step 6: Final answer
    x = 3,059.24

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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.