Home / 3,418.58-5,125.40-2,761.27

Finding the Fourth Proportional to 3,418.58, 5,125.40 and 2,761.27

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Solution

The fourth proportional to 3,418.58, 5,125.40 and 2,761.27 is: 4,139.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,418.58 : 5,125.40 = 2,761.27 : x
  2. Step 2: Convert to fraction form
    3,418.58/5,125.40 = 2,761.27/x
  3. Step 3: Cross multiply
    3,418.58x = 5,125.40 × 2,761.27
  4. Step 4: Simplify right side
    3,418.58x = 14,152,573.82
  5. Step 5: Solve for x
    x = 14,152,573.82/3,418.58
  6. Step 6: Final answer
    x = 4,139.90

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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.