Home / 1,620.09-2,236.44-1,181.34

Finding the Fourth Proportional to 1,620.09, 2,236.44 and 1,181.34

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Solution

The fourth proportional to 1,620.09, 2,236.44 and 1,181.34 is: 1,630.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,620.09 : 2,236.44 = 1,181.34 : x
  2. Step 2: Convert to fraction form
    1,620.09/2,236.44 = 1,181.34/x
  3. Step 3: Cross multiply
    1,620.09x = 2,236.44 × 1,181.34
  4. Step 4: Simplify right side
    1,620.09x = 2,641,996.03
  5. Step 5: Solve for x
    x = 2,641,996.03/1,620.09
  6. Step 6: Final answer
    x = 1,630.77

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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.