Home / 7,890.82-11,836.59-2,958.82

Finding the Fourth Proportional to 7,890.82, 11,836.59 and 2,958.82

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Solution

The fourth proportional to 7,890.82, 11,836.59 and 2,958.82 is: 4,438.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,890.82 : 11,836.59 = 2,958.82 : x
  2. Step 2: Convert to fraction form
    7,890.82/11,836.59 = 2,958.82/x
  3. Step 3: Cross multiply
    7,890.82x = 11,836.59 × 2,958.82
  4. Step 4: Simplify right side
    7,890.82x = 35,022,339.22
  5. Step 5: Solve for x
    x = 35,022,339.22/7,890.82
  6. Step 6: Final answer
    x = 4,438.36

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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.