Home / 1,391.31-2,087.06-1,134.27

Finding the Fourth Proportional to 1,391.31, 2,087.06 and 1,134.27

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Solution

The fourth proportional to 1,391.31, 2,087.06 and 1,134.27 is: 1,701.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,391.31 : 2,087.06 = 1,134.27 : x
  2. Step 2: Convert to fraction form
    1,391.31/2,087.06 = 1,134.27/x
  3. Step 3: Cross multiply
    1,391.31x = 2,087.06 × 1,134.27
  4. Step 4: Simplify right side
    1,391.31x = 2,367,283.87
  5. Step 5: Solve for x
    x = 2,367,283.87/1,391.31
  6. Step 6: Final answer
    x = 1,701.48

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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.