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Finding the Fourth Proportional to 671.79, 927.01 and 377

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Solution

The fourth proportional to 671.79, 927.01 and 377 is: 520.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    671.79 : 927.01 = 377 : x
  2. Step 2: Convert to fraction form
    671.79/927.01 = 377/x
  3. Step 3: Cross multiply
    671.79x = 927.01 × 377
  4. Step 4: Simplify right side
    671.79x = 349,482.77
  5. Step 5: Solve for x
    x = 349,482.77/671.79
  6. Step 6: Final answer
    x = 520.23

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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.