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Finding the Fourth Proportional to 671.76, 927.04 and 377.03

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Solution

The fourth proportional to 671.76, 927.04 and 377.03 is: 520.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    671.76 : 927.04 = 377.03 : x
  2. Step 2: Convert to fraction form
    671.76/927.04 = 377.03/x
  3. Step 3: Cross multiply
    671.76x = 927.04 × 377.03
  4. Step 4: Simplify right side
    671.76x = 349,521.89
  5. Step 5: Solve for x
    x = 349,521.89/671.76
  6. Step 6: Final answer
    x = 520.31

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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.