Home / 1,912.79-2,868.43-1,134.38

Finding the Fourth Proportional to 1,912.79, 2,868.43 and 1,134.38

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Solution

The fourth proportional to 1,912.79, 2,868.43 and 1,134.38 is: 1,701.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,912.79 : 2,868.43 = 1,134.38 : x
  2. Step 2: Convert to fraction form
    1,912.79/2,868.43 = 1,134.38/x
  3. Step 3: Cross multiply
    1,912.79x = 2,868.43 × 1,134.38
  4. Step 4: Simplify right side
    1,912.79x = 3,253,889.62
  5. Step 5: Solve for x
    x = 3,253,889.62/1,912.79
  6. Step 6: Final answer
    x = 1,701.12

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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.