Home / 3,628.35-5,442.42-2,157.66

Finding the Fourth Proportional to 3,628.35, 5,442.42 and 2,157.66

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Solution

The fourth proportional to 3,628.35, 5,442.42 and 2,157.66 is: 3,236.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,628.35 : 5,442.42 = 2,157.66 : x
  2. Step 2: Convert to fraction form
    3,628.35/5,442.42 = 2,157.66/x
  3. Step 3: Cross multiply
    3,628.35x = 5,442.42 × 2,157.66
  4. Step 4: Simplify right side
    3,628.35x = 11,742,891.94
  5. Step 5: Solve for x
    x = 11,742,891.94/3,628.35
  6. Step 6: Final answer
    x = 3,236.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.