Home / 1,517.53-2,091.92-927.67

Finding the Fourth Proportional to 1,517.53, 2,091.92 and 927.67

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Solution

The fourth proportional to 1,517.53, 2,091.92 and 927.67 is: 1,278.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,517.53 : 2,091.92 = 927.67 : x
  2. Step 2: Convert to fraction form
    1,517.53/2,091.92 = 927.67/x
  3. Step 3: Cross multiply
    1,517.53x = 2,091.92 × 927.67
  4. Step 4: Simplify right side
    1,517.53x = 1,940,611.43
  5. Step 5: Solve for x
    x = 1,940,611.43/1,517.53
  6. Step 6: Final answer
    x = 1,278.80

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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.