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Finding the Fourth Proportional to 676.72, 933.74 and 377.92

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Solution

The fourth proportional to 676.72, 933.74 and 377.92 is: 521.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    676.72 : 933.74 = 377.92 : x
  2. Step 2: Convert to fraction form
    676.72/933.74 = 377.92/x
  3. Step 3: Cross multiply
    676.72x = 933.74 × 377.92
  4. Step 4: Simplify right side
    676.72x = 352,879.02
  5. Step 5: Solve for x
    x = 352,879.02/676.72
  6. Step 6: Final answer
    x = 521.45

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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.