Home / 3,780.43-5,664.87-1,587.96

Finding the Fourth Proportional to 3,780.43, 5,664.87 and 1,587.96

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Solution

The fourth proportional to 3,780.43, 5,664.87 and 1,587.96 is: 2,379.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,780.43 : 5,664.87 = 1,587.96 : x
  2. Step 2: Convert to fraction form
    3,780.43/5,664.87 = 1,587.96/x
  3. Step 3: Cross multiply
    3,780.43x = 5,664.87 × 1,587.96
  4. Step 4: Simplify right side
    3,780.43x = 8,995,586.97
  5. Step 5: Solve for x
    x = 8,995,586.97/3,780.43
  6. Step 6: Final answer
    x = 2,379.51

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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.