Home / 3,926.50-5,889.60-1,585.78

Finding the Fourth Proportional to 3,926.50, 5,889.60 and 1,585.78

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Solution

The fourth proportional to 3,926.50, 5,889.60 and 1,585.78 is: 2,378.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,926.50 : 5,889.60 = 1,585.78 : x
  2. Step 2: Convert to fraction form
    3,926.50/5,889.60 = 1,585.78/x
  3. Step 3: Cross multiply
    3,926.50x = 5,889.60 × 1,585.78
  4. Step 4: Simplify right side
    3,926.50x = 9,339,609.89
  5. Step 5: Solve for x
    x = 9,339,609.89/3,926.50
  6. Step 6: Final answer
    x = 2,378.61

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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.