Home / 4,910.78-6,776.43-2,893.88

Finding the Fourth Proportional to 4,910.78, 6,776.43 and 2,893.88

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Solution

The fourth proportional to 4,910.78, 6,776.43 and 2,893.88 is: 3,993.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,910.78 : 6,776.43 = 2,893.88 : x
  2. Step 2: Convert to fraction form
    4,910.78/6,776.43 = 2,893.88/x
  3. Step 3: Cross multiply
    4,910.78x = 6,776.43 × 2,893.88
  4. Step 4: Simplify right side
    4,910.78x = 19,610,175.25
  5. Step 5: Solve for x
    x = 19,610,175.25/4,910.78
  6. Step 6: Final answer
    x = 3,993.29

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1.5x scale

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.