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Finding the Fourth Proportional to 1,882.23, 2,823.61 and 711.91

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Solution

The fourth proportional to 1,882.23, 2,823.61 and 711.91 is: 1,067.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,882.23 : 2,823.61 = 711.91 : x
  2. Step 2: Convert to fraction form
    1,882.23/2,823.61 = 711.91/x
  3. Step 3: Cross multiply
    1,882.23x = 2,823.61 × 711.91
  4. Step 4: Simplify right side
    1,882.23x = 2,010,156.20
  5. Step 5: Solve for x
    x = 2,010,156.20/1,882.23
  6. Step 6: Final answer
    x = 1,067.97

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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.