Home / 2,619.41-3,913.27-1,687.37

Finding the Fourth Proportional to 2,619.41, 3,913.27 and 1,687.37

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Solution

The fourth proportional to 2,619.41, 3,913.27 and 1,687.37 is: 2,520.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,619.41 : 3,913.27 = 1,687.37 : x
  2. Step 2: Convert to fraction form
    2,619.41/3,913.27 = 1,687.37/x
  3. Step 3: Cross multiply
    2,619.41x = 3,913.27 × 1,687.37
  4. Step 4: Simplify right side
    2,619.41x = 6,603,134.40
  5. Step 5: Solve for x
    x = 6,603,134.40/2,619.41
  6. Step 6: Final answer
    x = 2,520.85

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.