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Finding the Fourth Proportional to 888.83, 1,331.81 and 672.83

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Solution

The fourth proportional to 888.83, 1,331.81 and 672.83 is: 1,008.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    888.83 : 1,331.81 = 672.83 : x
  2. Step 2: Convert to fraction form
    888.83/1,331.81 = 672.83/x
  3. Step 3: Cross multiply
    888.83x = 1,331.81 × 672.83
  4. Step 4: Simplify right side
    888.83x = 896,078.36
  5. Step 5: Solve for x
    x = 896,078.36/888.83
  6. Step 6: Final answer
    x = 1,008.15

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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.