Home / 7,721.15-11,582.82-2,384.79

Finding the Fourth Proportional to 7,721.15, 11,582.82 and 2,384.79

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Solution

The fourth proportional to 7,721.15, 11,582.82 and 2,384.79 is: 3,577.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,721.15 : 11,582.82 = 2,384.79 : x
  2. Step 2: Convert to fraction form
    7,721.15/11,582.82 = 2,384.79/x
  3. Step 3: Cross multiply
    7,721.15x = 11,582.82 × 2,384.79
  4. Step 4: Simplify right side
    7,721.15x = 27,622,621.73
  5. Step 5: Solve for x
    x = 27,622,621.73/7,721.15
  6. Step 6: Final answer
    x = 3,577.53

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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.