Home / 2,185.06-3,015.44-1,190.35

Finding the Fourth Proportional to 2,185.06, 3,015.44 and 1,190.35

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Solution

The fourth proportional to 2,185.06, 3,015.44 and 1,190.35 is: 1,642.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,185.06 : 3,015.44 = 1,190.35 : x
  2. Step 2: Convert to fraction form
    2,185.06/3,015.44 = 1,190.35/x
  3. Step 3: Cross multiply
    2,185.06x = 3,015.44 × 1,190.35
  4. Step 4: Simplify right side
    2,185.06x = 3,589,423.05
  5. Step 5: Solve for x
    x = 3,589,423.05/2,185.06
  6. Step 6: Final answer
    x = 1,642.72

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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.