Home / 2,576.42-3,861.03-1,276.58

Finding the Fourth Proportional to 2,576.42, 3,861.03 and 1,276.58

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Solution

The fourth proportional to 2,576.42, 3,861.03 and 1,276.58 is: 1,913.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,576.42 : 3,861.03 = 1,276.58 : x
  2. Step 2: Convert to fraction form
    2,576.42/3,861.03 = 1,276.58/x
  3. Step 3: Cross multiply
    2,576.42x = 3,861.03 × 1,276.58
  4. Step 4: Simplify right side
    2,576.42x = 4,928,913.68
  5. Step 5: Solve for x
    x = 4,928,913.68/2,576.42
  6. Step 6: Final answer
    x = 1,913.09

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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.