Home / 3,863.40-5,331.10-2,371.38

Finding the Fourth Proportional to 3,863.40, 5,331.10 and 2,371.38

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Solution

The fourth proportional to 3,863.40, 5,331.10 and 2,371.38 is: 3,272.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,863.40 : 5,331.10 = 2,371.38 : x
  2. Step 2: Convert to fraction form
    3,863.40/5,331.10 = 2,371.38/x
  3. Step 3: Cross multiply
    3,863.40x = 5,331.10 × 2,371.38
  4. Step 4: Simplify right side
    3,863.40x = 12,642,063.92
  5. Step 5: Solve for x
    x = 12,642,063.92/3,863.40
  6. Step 6: Final answer
    x = 3,272.26

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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.