Home / 7,782.75-11,677.77-3,401.46

Finding the Fourth Proportional to 7,782.75, 11,677.77 and 3,401.46

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Solution

The fourth proportional to 7,782.75, 11,677.77 and 3,401.46 is: 5,103.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,782.75 : 11,677.77 = 3,401.46 : x
  2. Step 2: Convert to fraction form
    7,782.75/11,677.77 = 3,401.46/x
  3. Step 3: Cross multiply
    7,782.75x = 11,677.77 × 3,401.46
  4. Step 4: Simplify right side
    7,782.75x = 39,721,467.54
  5. Step 5: Solve for x
    x = 39,721,467.54/7,782.75
  6. Step 6: Final answer
    x = 5,103.78

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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.