Home / 6,920.67-10,385.99-2,758.27

Finding the Fourth Proportional to 6,920.67, 10,385.99 and 2,758.27

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Solution

The fourth proportional to 6,920.67, 10,385.99 and 2,758.27 is: 4,139.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,920.67 : 10,385.99 = 2,758.27 : x
  2. Step 2: Convert to fraction form
    6,920.67/10,385.99 = 2,758.27/x
  3. Step 3: Cross multiply
    6,920.67x = 10,385.99 × 2,758.27
  4. Step 4: Simplify right side
    6,920.67x = 28,647,364.64
  5. Step 5: Solve for x
    x = 28,647,364.64/6,920.67
  6. Step 6: Final answer
    x = 4,139.39

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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.