Home / 7,860.20-11,786.24-2,312.82

Finding the Fourth Proportional to 7,860.20, 11,786.24 and 2,312.82

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Solution

The fourth proportional to 7,860.20, 11,786.24 and 2,312.82 is: 3,468.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,860.20 : 11,786.24 = 2,312.82 : x
  2. Step 2: Convert to fraction form
    7,860.20/11,786.24 = 2,312.82/x
  3. Step 3: Cross multiply
    7,860.20x = 11,786.24 × 2,312.82
  4. Step 4: Simplify right side
    7,860.20x = 27,259,429.09
  5. Step 5: Solve for x
    x = 27,259,429.09/7,860.20
  6. Step 6: Final answer
    x = 3,468.03

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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.