Home / 3,861.92-5,790.40-1,264.48

Finding the Fourth Proportional to 3,861.92, 5,790.40 and 1,264.48

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Solution

The fourth proportional to 3,861.92, 5,790.40 and 1,264.48 is: 1,895.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,861.92 : 5,790.40 = 1,264.48 : x
  2. Step 2: Convert to fraction form
    3,861.92/5,790.40 = 1,264.48/x
  3. Step 3: Cross multiply
    3,861.92x = 5,790.40 × 1,264.48
  4. Step 4: Simplify right side
    3,861.92x = 7,321,844.99
  5. Step 5: Solve for x
    x = 7,321,844.99/3,861.92
  6. Step 6: Final answer
    x = 1,895.91

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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.