Home / 3,894.90-5,373.66-2,381.91

Finding the Fourth Proportional to 3,894.90, 5,373.66 and 2,381.91

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Solution

The fourth proportional to 3,894.90, 5,373.66 and 2,381.91 is: 3,286.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,894.90 : 5,373.66 = 2,381.91 : x
  2. Step 2: Convert to fraction form
    3,894.90/5,373.66 = 2,381.91/x
  3. Step 3: Cross multiply
    3,894.90x = 5,373.66 × 2,381.91
  4. Step 4: Simplify right side
    3,894.90x = 12,799,574.49
  5. Step 5: Solve for x
    x = 12,799,574.49/3,894.90
  6. Step 6: Final answer
    x = 3,286.24

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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.