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Finding the Fourth Proportional to 6,919.48, 10,377.19 and 2,758.11

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Solution

The fourth proportional to 6,919.48, 10,377.19 and 2,758.11 is: 4,136.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,919.48 : 10,377.19 = 2,758.11 : x
  2. Step 2: Convert to fraction form
    6,919.48/10,377.19 = 2,758.11/x
  3. Step 3: Cross multiply
    6,919.48x = 10,377.19 × 2,758.11
  4. Step 4: Simplify right side
    6,919.48x = 28,621,431.51
  5. Step 5: Solve for x
    x = 28,621,431.51/6,919.48
  6. Step 6: Final answer
    x = 4,136.36

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.