Home / 6,619.81-9,932.28-2,919.43

Finding the Fourth Proportional to 6,619.81, 9,932.28 and 2,919.43

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Solution

The fourth proportional to 6,619.81, 9,932.28 and 2,919.43 is: 4,380.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,619.81 : 9,932.28 = 2,919.43 : x
  2. Step 2: Convert to fraction form
    6,619.81/9,932.28 = 2,919.43/x
  3. Step 3: Cross multiply
    6,619.81x = 9,932.28 × 2,919.43
  4. Step 4: Simplify right side
    6,619.81x = 28,996,546.54
  5. Step 5: Solve for x
    x = 28,996,546.54/6,619.81
  6. Step 6: Final answer
    x = 4,380.27

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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.