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Finding the Fourth Proportional to 683.84, 937.58 and 676.64

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Solution

The fourth proportional to 683.84, 937.58 and 676.64 is: 927.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    683.84 : 937.58 = 676.64 : x
  2. Step 2: Convert to fraction form
    683.84/937.58 = 676.64/x
  3. Step 3: Cross multiply
    683.84x = 937.58 × 676.64
  4. Step 4: Simplify right side
    683.84x = 634,404.13
  5. Step 5: Solve for x
    x = 634,404.13/683.84
  6. Step 6: Final answer
    x = 927.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.