Home / 6,861.77-10,290.60-2,912.96

Finding the Fourth Proportional to 6,861.77, 10,290.60 and 2,912.96

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Solution

The fourth proportional to 6,861.77, 10,290.60 and 2,912.96 is: 4,368.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,861.77 : 10,290.60 = 2,912.96 : x
  2. Step 2: Convert to fraction form
    6,861.77/10,290.60 = 2,912.96/x
  3. Step 3: Cross multiply
    6,861.77x = 10,290.60 × 2,912.96
  4. Step 4: Simplify right side
    6,861.77x = 29,976,054.72
  5. Step 5: Solve for x
    x = 29,976,054.72/6,861.77
  6. Step 6: Final answer
    x = 4,368.56

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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.