Home / 3,877.40-5,350.73-2,198.81

Finding the Fourth Proportional to 3,877.40, 5,350.73 and 2,198.81

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Solution

The fourth proportional to 3,877.40, 5,350.73 and 2,198.81 is: 3,034.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,877.40 : 5,350.73 = 2,198.81 : x
  2. Step 2: Convert to fraction form
    3,877.40/5,350.73 = 2,198.81/x
  3. Step 3: Cross multiply
    3,877.40x = 5,350.73 × 2,198.81
  4. Step 4: Simplify right side
    3,877.40x = 11,765,200.88
  5. Step 5: Solve for x
    x = 11,765,200.88/3,877.40
  6. Step 6: Final answer
    x = 3,034.31

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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.