Home / 2,189.19-3,019.96-1,481.07

Finding the Fourth Proportional to 2,189.19, 3,019.96 and 1,481.07

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Solution

The fourth proportional to 2,189.19, 3,019.96 and 1,481.07 is: 2,043.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,189.19 : 3,019.96 = 1,481.07 : x
  2. Step 2: Convert to fraction form
    2,189.19/3,019.96 = 1,481.07/x
  3. Step 3: Cross multiply
    2,189.19x = 3,019.96 × 1,481.07
  4. Step 4: Simplify right side
    2,189.19x = 4,472,753.35
  5. Step 5: Solve for x
    x = 4,472,753.35/2,189.19
  6. Step 6: Final answer
    x = 2,043.11

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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.