Home / 1,921.56-2,882.79-623.03

Finding the Fourth Proportional to 1,921.56, 2,882.79 and 623.03

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Solution

The fourth proportional to 1,921.56, 2,882.79 and 623.03 is: 934.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,921.56 : 2,882.79 = 623.03 : x
  2. Step 2: Convert to fraction form
    1,921.56/2,882.79 = 623.03/x
  3. Step 3: Cross multiply
    1,921.56x = 2,882.79 × 623.03
  4. Step 4: Simplify right side
    1,921.56x = 1,796,063.39
  5. Step 5: Solve for x
    x = 1,796,063.39/1,921.56
  6. Step 6: Final answer
    x = 934.69

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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.