Home / 2,009.73-3,015.75-1,189.61

Finding the Fourth Proportional to 2,009.73, 3,015.75 and 1,189.61

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Solution

The fourth proportional to 2,009.73, 3,015.75 and 1,189.61 is: 1,785.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,009.73 : 3,015.75 = 1,189.61 : x
  2. Step 2: Convert to fraction form
    2,009.73/3,015.75 = 1,189.61/x
  3. Step 3: Cross multiply
    2,009.73x = 3,015.75 × 1,189.61
  4. Step 4: Simplify right side
    2,009.73x = 3,587,566.36
  5. Step 5: Solve for x
    x = 3,587,566.36/2,009.73
  6. Step 6: Final answer
    x = 1,785.10

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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.