Home / 7,745.65-11,620.28-2,747.77

Finding the Fourth Proportional to 7,745.65, 11,620.28 and 2,747.77

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Solution

The fourth proportional to 7,745.65, 11,620.28 and 2,747.77 is: 4,122.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,745.65 : 11,620.28 = 2,747.77 : x
  2. Step 2: Convert to fraction form
    7,745.65/11,620.28 = 2,747.77/x
  3. Step 3: Cross multiply
    7,745.65x = 11,620.28 × 2,747.77
  4. Step 4: Simplify right side
    7,745.65x = 31,929,834.59
  5. Step 5: Solve for x
    x = 31,929,834.59/7,745.65
  6. Step 6: Final answer
    x = 4,122.29

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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.