Home / 3,123.44-4,687.29-1,663.62

Finding the Fourth Proportional to 3,123.44, 4,687.29 and 1,663.62

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Solution

The fourth proportional to 3,123.44, 4,687.29 and 1,663.62 is: 2,496.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,123.44 : 4,687.29 = 1,663.62 : x
  2. Step 2: Convert to fraction form
    3,123.44/4,687.29 = 1,663.62/x
  3. Step 3: Cross multiply
    3,123.44x = 4,687.29 × 1,663.62
  4. Step 4: Simplify right side
    3,123.44x = 7,797,869.39
  5. Step 5: Solve for x
    x = 7,797,869.39/3,123.44
  6. Step 6: Final answer
    x = 2,496.56

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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.