Home / 6,381.45-8,806.62-3,864.03

Finding the Fourth Proportional to 6,381.45, 8,806.62 and 3,864.03

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Solution

The fourth proportional to 6,381.45, 8,806.62 and 3,864.03 is: 5,332.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,381.45 : 8,806.62 = 3,864.03 : x
  2. Step 2: Convert to fraction form
    6,381.45/8,806.62 = 3,864.03/x
  3. Step 3: Cross multiply
    6,381.45x = 8,806.62 × 3,864.03
  4. Step 4: Simplify right side
    6,381.45x = 34,029,043.88
  5. Step 5: Solve for x
    x = 34,029,043.88/6,381.45
  6. Step 6: Final answer
    x = 5,332.49

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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.