Home / 2,682.60-4,020.78-1,587.88

Finding the Fourth Proportional to 2,682.60, 4,020.78 and 1,587.88

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Solution

The fourth proportional to 2,682.60, 4,020.78 and 1,587.88 is: 2,379.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,682.60 : 4,020.78 = 1,587.88 : x
  2. Step 2: Convert to fraction form
    2,682.60/4,020.78 = 1,587.88/x
  3. Step 3: Cross multiply
    2,682.60x = 4,020.78 × 1,587.88
  4. Step 4: Simplify right side
    2,682.60x = 6,384,516.15
  5. Step 5: Solve for x
    x = 6,384,516.15/2,682.60
  6. Step 6: Final answer
    x = 2,379.97

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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.