Home / 1,921.82-2,882.83-623.19

Finding the Fourth Proportional to 1,921.82, 2,882.83 and 623.19

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Solution

The fourth proportional to 1,921.82, 2,882.83 and 623.19 is: 934.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,921.82 : 2,882.83 = 623.19 : x
  2. Step 2: Convert to fraction form
    1,921.82/2,882.83 = 623.19/x
  3. Step 3: Cross multiply
    1,921.82x = 2,882.83 × 623.19
  4. Step 4: Simplify right side
    1,921.82x = 1,796,550.83
  5. Step 5: Solve for x
    x = 1,796,550.83/1,921.82
  6. Step 6: Final answer
    x = 934.82

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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.