Home / 7,791.63-11,687.03-2,860.86

Finding the Fourth Proportional to 7,791.63, 11,687.03 and 2,860.86

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Solution

The fourth proportional to 7,791.63, 11,687.03 and 2,860.86 is: 4,291.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,791.63 : 11,687.03 = 2,860.86 : x
  2. Step 2: Convert to fraction form
    7,791.63/11,687.03 = 2,860.86/x
  3. Step 3: Cross multiply
    7,791.63x = 11,687.03 × 2,860.86
  4. Step 4: Simplify right side
    7,791.63x = 33,434,956.65
  5. Step 5: Solve for x
    x = 33,434,956.65/7,791.63
  6. Step 6: Final answer
    x = 4,291.14

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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.