Home / 4,876.90-6,731.58-2,861.44

Finding the Fourth Proportional to 4,876.90, 6,731.58 and 2,861.44

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Solution

The fourth proportional to 4,876.90, 6,731.58 and 2,861.44 is: 3,949.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,876.90 : 6,731.58 = 2,861.44 : x
  2. Step 2: Convert to fraction form
    4,876.90/6,731.58 = 2,861.44/x
  3. Step 3: Cross multiply
    4,876.90x = 6,731.58 × 2,861.44
  4. Step 4: Simplify right side
    4,876.90x = 19,262,012.28
  5. Step 5: Solve for x
    x = 19,262,012.28/4,876.90
  6. Step 6: Final answer
    x = 3,949.64

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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.