Home / 1,889.19-2,608.38-1,181.34

Finding the Fourth Proportional to 1,889.19, 2,608.38 and 1,181.34

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Solution

The fourth proportional to 1,889.19, 2,608.38 and 1,181.34 is: 1,631.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,889.19 : 2,608.38 = 1,181.34 : x
  2. Step 2: Convert to fraction form
    1,889.19/2,608.38 = 1,181.34/x
  3. Step 3: Cross multiply
    1,889.19x = 2,608.38 × 1,181.34
  4. Step 4: Simplify right side
    1,889.19x = 3,081,383.63
  5. Step 5: Solve for x
    x = 3,081,383.63/1,889.19
  6. Step 6: Final answer
    x = 1,631.06

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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.