Home / 4,989.36-7,481.73-1,867.05

Finding the Fourth Proportional to 4,989.36, 7,481.73 and 1,867.05

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Solution

The fourth proportional to 4,989.36, 7,481.73 and 1,867.05 is: 2,799.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,989.36 : 7,481.73 = 1,867.05 : x
  2. Step 2: Convert to fraction form
    4,989.36/7,481.73 = 1,867.05/x
  3. Step 3: Cross multiply
    4,989.36x = 7,481.73 × 1,867.05
  4. Step 4: Simplify right side
    4,989.36x = 13,968,764.00
  5. Step 5: Solve for x
    x = 13,968,764.00/4,989.36
  6. Step 6: Final answer
    x = 2,799.71

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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.