Home / 3,861.18-5,791.68-1,087.83

Finding the Fourth Proportional to 3,861.18, 5,791.68 and 1,087.83

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Solution

The fourth proportional to 3,861.18, 5,791.68 and 1,087.83 is: 1,631.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,861.18 : 5,791.68 = 1,087.83 : x
  2. Step 2: Convert to fraction form
    3,861.18/5,791.68 = 1,087.83/x
  3. Step 3: Cross multiply
    3,861.18x = 5,791.68 × 1,087.83
  4. Step 4: Simplify right side
    3,861.18x = 6,300,363.25
  5. Step 5: Solve for x
    x = 6,300,363.25/3,861.18
  6. Step 6: Final answer
    x = 1,631.72

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1.5x scale

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.