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Finding the Fourth Proportional to 671.86, 927.66 and 435.88

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Solution

The fourth proportional to 671.86, 927.66 and 435.88 is: 601.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    671.86 : 927.66 = 435.88 : x
  2. Step 2: Convert to fraction form
    671.86/927.66 = 435.88/x
  3. Step 3: Cross multiply
    671.86x = 927.66 × 435.88
  4. Step 4: Simplify right side
    671.86x = 404,348.44
  5. Step 5: Solve for x
    x = 404,348.44/671.86
  6. Step 6: Final answer
    x = 601.83

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1.5x scale

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.