Home / 3,442.82-4,749.21-2,181.70

Finding the Fourth Proportional to 3,442.82, 4,749.21 and 2,181.70

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Solution

The fourth proportional to 3,442.82, 4,749.21 and 2,181.70 is: 3,009.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,442.82 : 4,749.21 = 2,181.70 : x
  2. Step 2: Convert to fraction form
    3,442.82/4,749.21 = 2,181.70/x
  3. Step 3: Cross multiply
    3,442.82x = 4,749.21 × 2,181.70
  4. Step 4: Simplify right side
    3,442.82x = 10,361,361.28
  5. Step 5: Solve for x
    x = 10,361,361.28/3,442.82
  6. Step 6: Final answer
    x = 3,009.56

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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.