Home / 7,828.77-11,735.85-2,631

Finding the Fourth Proportional to 7,828.77, 11,735.85 and 2,631

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Solution

The fourth proportional to 7,828.77, 11,735.85 and 2,631 is: 3,944.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,828.77 : 11,735.85 = 2,631 : x
  2. Step 2: Convert to fraction form
    7,828.77/11,735.85 = 2,631/x
  3. Step 3: Cross multiply
    7,828.77x = 11,735.85 × 2,631
  4. Step 4: Simplify right side
    7,828.77x = 30,877,021.35
  5. Step 5: Solve for x
    x = 30,877,021.35/7,828.77
  6. Step 6: Final answer
    x = 3,944.05

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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.