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Finding the Fourth Proportional to 6,888.99, 10,333.49 and 2,991.27

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Solution

The fourth proportional to 6,888.99, 10,333.49 and 2,991.27 is: 4,486.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,888.99 : 10,333.49 = 2,991.27 : x
  2. Step 2: Convert to fraction form
    6,888.99/10,333.49 = 2,991.27/x
  3. Step 3: Cross multiply
    6,888.99x = 10,333.49 × 2,991.27
  4. Step 4: Simplify right side
    6,888.99x = 30,910,243.68
  5. Step 5: Solve for x
    x = 30,910,243.68/6,888.99
  6. Step 6: Final answer
    x = 4,486.91

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Similar ratio
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1.5x scale

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.