Home / 3,896.80-5,371.99-2,403.71

Finding the Fourth Proportional to 3,896.80, 5,371.99 and 2,403.71

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Solution

The fourth proportional to 3,896.80, 5,371.99 and 2,403.71 is: 3,313.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,896.80 : 5,371.99 = 2,403.71 : x
  2. Step 2: Convert to fraction form
    3,896.80/5,371.99 = 2,403.71/x
  3. Step 3: Cross multiply
    3,896.80x = 5,371.99 × 2,403.71
  4. Step 4: Simplify right side
    3,896.80x = 12,912,706.08
  5. Step 5: Solve for x
    x = 12,912,706.08/3,896.80
  6. Step 6: Final answer
    x = 3,313.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.