Home / 6,821.16-10,230.16-2,659.72

Finding the Fourth Proportional to 6,821.16, 10,230.16 and 2,659.72

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Solution

The fourth proportional to 6,821.16, 10,230.16 and 2,659.72 is: 3,988.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,821.16 : 10,230.16 = 2,659.72 : x
  2. Step 2: Convert to fraction form
    6,821.16/10,230.16 = 2,659.72/x
  3. Step 3: Cross multiply
    6,821.16x = 10,230.16 × 2,659.72
  4. Step 4: Simplify right side
    6,821.16x = 27,209,361.16
  5. Step 5: Solve for x
    x = 27,209,361.16/6,821.16
  6. Step 6: Final answer
    x = 3,988.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.