Home / 7,844.50-11,768.20-2,579.80

Finding the Fourth Proportional to 7,844.50, 11,768.20 and 2,579.80

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Solution

The fourth proportional to 7,844.50, 11,768.20 and 2,579.80 is: 3,870.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,844.50 : 11,768.20 = 2,579.80 : x
  2. Step 2: Convert to fraction form
    7,844.50/11,768.20 = 2,579.80/x
  3. Step 3: Cross multiply
    7,844.50x = 11,768.20 × 2,579.80
  4. Step 4: Simplify right side
    7,844.50x = 30,359,566.49
  5. Step 5: Solve for x
    x = 30,359,566.49/7,844.50
  6. Step 6: Final answer
    x = 3,870.17

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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.