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Finding the Fourth Proportional to 3,173.88, 4,760.82 and 982.71

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Solution

The fourth proportional to 3,173.88, 4,760.82 and 982.71 is: 1,474.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,173.88 : 4,760.82 = 982.71 : x
  2. Step 2: Convert to fraction form
    3,173.88/4,760.82 = 982.71/x
  3. Step 3: Cross multiply
    3,173.88x = 4,760.82 × 982.71
  4. Step 4: Simplify right side
    3,173.88x = 4,678,505.42
  5. Step 5: Solve for x
    x = 4,678,505.42/3,173.88
  6. Step 6: Final answer
    x = 1,474.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.