Home / 3,914.30-5,401.86-2,381.24

Finding the Fourth Proportional to 3,914.30, 5,401.86 and 2,381.24

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Solution

The fourth proportional to 3,914.30, 5,401.86 and 2,381.24 is: 3,286.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,914.30 : 5,401.86 = 2,381.24 : x
  2. Step 2: Convert to fraction form
    3,914.30/5,401.86 = 2,381.24/x
  3. Step 3: Cross multiply
    3,914.30x = 5,401.86 × 2,381.24
  4. Step 4: Simplify right side
    3,914.30x = 12,863,125.11
  5. Step 5: Solve for x
    x = 12,863,125.11/3,914.30
  6. Step 6: Final answer
    x = 3,286.19

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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.