Home / 4,910.89-6,777.09-2,815

Finding the Fourth Proportional to 4,910.89, 6,777.09 and 2,815

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Solution

The fourth proportional to 4,910.89, 6,777.09 and 2,815 is: 3,884.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,910.89 : 6,777.09 = 2,815 : x
  2. Step 2: Convert to fraction form
    4,910.89/6,777.09 = 2,815/x
  3. Step 3: Cross multiply
    4,910.89x = 6,777.09 × 2,815
  4. Step 4: Simplify right side
    4,910.89x = 19,077,508.35
  5. Step 5: Solve for x
    x = 19,077,508.35/4,910.89
  6. Step 6: Final answer
    x = 3,884.74

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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.