Home / 4,813.10-7,221.37-2,181.21

Finding the Fourth Proportional to 4,813.10, 7,221.37 and 2,181.21

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Solution

The fourth proportional to 4,813.10, 7,221.37 and 2,181.21 is: 3,272.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,813.10 : 7,221.37 = 2,181.21 : x
  2. Step 2: Convert to fraction form
    4,813.10/7,221.37 = 2,181.21/x
  3. Step 3: Cross multiply
    4,813.10x = 7,221.37 × 2,181.21
  4. Step 4: Simplify right side
    4,813.10x = 15,751,324.46
  5. Step 5: Solve for x
    x = 15,751,324.46/4,813.10
  6. Step 6: Final answer
    x = 3,272.59

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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.