Home / 7,890.12-11,836.62-3,273

Finding the Fourth Proportional to 7,890.12, 11,836.62 and 3,273

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Solution

The fourth proportional to 7,890.12, 11,836.62 and 3,273 is: 4,910.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,890.12 : 11,836.62 = 3,273 : x
  2. Step 2: Convert to fraction form
    7,890.12/11,836.62 = 3,273/x
  3. Step 3: Cross multiply
    7,890.12x = 11,836.62 × 3,273
  4. Step 4: Simplify right side
    7,890.12x = 38,741,257.26
  5. Step 5: Solve for x
    x = 38,741,257.26/7,890.12
  6. Step 6: Final answer
    x = 4,910.10

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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.