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Finding the Fourth Proportional to 672.11, 927.53 and 377.36

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Solution

The fourth proportional to 672.11, 927.53 and 377.36 is: 520.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    672.11 : 927.53 = 377.36 : x
  2. Step 2: Convert to fraction form
    672.11/927.53 = 377.36/x
  3. Step 3: Cross multiply
    672.11x = 927.53 × 377.36
  4. Step 4: Simplify right side
    672.11x = 350,006.20
  5. Step 5: Solve for x
    x = 350,006.20/672.11
  6. Step 6: Final answer
    x = 520.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.