Home / 3,187.42-4,400.24-1,993.07

Finding the Fourth Proportional to 3,187.42, 4,400.24 and 1,993.07

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Solution

The fourth proportional to 3,187.42, 4,400.24 and 1,993.07 is: 2,751.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,187.42 : 4,400.24 = 1,993.07 : x
  2. Step 2: Convert to fraction form
    3,187.42/4,400.24 = 1,993.07/x
  3. Step 3: Cross multiply
    3,187.42x = 4,400.24 × 1,993.07
  4. Step 4: Simplify right side
    3,187.42x = 8,769,987.37
  5. Step 5: Solve for x
    x = 8,769,987.37/3,187.42
  6. Step 6: Final answer
    x = 2,751.44

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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.