Home / 2,576.41-3,861.53-1,687.39

Finding the Fourth Proportional to 2,576.41, 3,861.53 and 1,687.39

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Solution

The fourth proportional to 2,576.41, 3,861.53 and 1,687.39 is: 2,529.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,576.41 : 3,861.53 = 1,687.39 : x
  2. Step 2: Convert to fraction form
    2,576.41/3,861.53 = 1,687.39/x
  3. Step 3: Cross multiply
    2,576.41x = 3,861.53 × 1,687.39
  4. Step 4: Simplify right side
    2,576.41x = 6,515,901.67
  5. Step 5: Solve for x
    x = 6,515,901.67/2,576.41
  6. Step 6: Final answer
    x = 2,529.06

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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.