Home / 1,611.27-2,414.75-743.67

Finding the Fourth Proportional to 1,611.27, 2,414.75 and 743.67

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Solution

The fourth proportional to 1,611.27, 2,414.75 and 743.67 is: 1,114.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,611.27 : 2,414.75 = 743.67 : x
  2. Step 2: Convert to fraction form
    1,611.27/2,414.75 = 743.67/x
  3. Step 3: Cross multiply
    1,611.27x = 2,414.75 × 743.67
  4. Step 4: Simplify right side
    1,611.27x = 1,795,773.41
  5. Step 5: Solve for x
    x = 1,795,773.41/1,611.27
  6. Step 6: Final answer
    x = 1,114.51

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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.