Home / 3,896.30-5,371.30-2,403.21

Finding the Fourth Proportional to 3,896.30, 5,371.30 and 2,403.21

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Solution

The fourth proportional to 3,896.30, 5,371.30 and 2,403.21 is: 3,312.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,896.30 : 5,371.30 = 2,403.21 : x
  2. Step 2: Convert to fraction form
    3,896.30/5,371.30 = 2,403.21/x
  3. Step 3: Cross multiply
    3,896.30x = 5,371.30 × 2,403.21
  4. Step 4: Simplify right side
    3,896.30x = 12,908,361.87
  5. Step 5: Solve for x
    x = 12,908,361.87/3,896.30
  6. Step 6: Final answer
    x = 3,312.98

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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.