Home / 4,971.78-6,861.09-2,733.80

Finding the Fourth Proportional to 4,971.78, 6,861.09 and 2,733.80

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Solution

The fourth proportional to 4,971.78, 6,861.09 and 2,733.80 is: 3,772.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,971.78 : 6,861.09 = 2,733.80 : x
  2. Step 2: Convert to fraction form
    4,971.78/6,861.09 = 2,733.80/x
  3. Step 3: Cross multiply
    4,971.78x = 6,861.09 × 2,733.80
  4. Step 4: Simplify right side
    4,971.78x = 18,756,859.03
  5. Step 5: Solve for x
    x = 18,756,859.03/4,971.78
  6. Step 6: Final answer
    x = 3,772.66

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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.