Home / 6,868.80-10,305.90-2,708.10

Finding the Fourth Proportional to 6,868.80, 10,305.90 and 2,708.10

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Solution

The fourth proportional to 6,868.80, 10,305.90 and 2,708.10 is: 4,063.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,868.80 : 10,305.90 = 2,708.10 : x
  2. Step 2: Convert to fraction form
    6,868.80/10,305.90 = 2,708.10/x
  3. Step 3: Cross multiply
    6,868.80x = 10,305.90 × 2,708.10
  4. Step 4: Simplify right side
    6,868.80x = 27,909,407.79
  5. Step 5: Solve for x
    x = 27,909,407.79/6,868.80
  6. Step 6: Final answer
    x = 4,063.21

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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.