Home / 7,790.97-11,687.48-2,860.67

Finding the Fourth Proportional to 7,790.97, 11,687.48 and 2,860.67

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Solution

The fourth proportional to 7,790.97, 11,687.48 and 2,860.67 is: 4,291.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,790.97 : 11,687.48 = 2,860.67 : x
  2. Step 2: Convert to fraction form
    7,790.97/11,687.48 = 2,860.67/x
  3. Step 3: Cross multiply
    7,790.97x = 11,687.48 × 2,860.67
  4. Step 4: Simplify right side
    7,790.97x = 33,433,950.67
  5. Step 5: Solve for x
    x = 33,433,950.67/7,790.97
  6. Step 6: Final answer
    x = 4,291.37

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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.