Home / 2,011.06-3,015.55-1,189.59

Finding the Fourth Proportional to 2,011.06, 3,015.55 and 1,189.59

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Solution

The fourth proportional to 2,011.06, 3,015.55 and 1,189.59 is: 1,783.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,011.06 : 3,015.55 = 1,189.59 : x
  2. Step 2: Convert to fraction form
    2,011.06/3,015.55 = 1,189.59/x
  3. Step 3: Cross multiply
    2,011.06x = 3,015.55 × 1,189.59
  4. Step 4: Simplify right side
    2,011.06x = 3,587,268.12
  5. Step 5: Solve for x
    x = 3,587,268.12/2,011.06
  6. Step 6: Final answer
    x = 1,783.77

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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.