Home / 6,868.75-10,304.12-2,125.28

Finding the Fourth Proportional to 6,868.75, 10,304.12 and 2,125.28

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Solution

The fourth proportional to 6,868.75, 10,304.12 and 2,125.28 is: 3,188.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,868.75 : 10,304.12 = 2,125.28 : x
  2. Step 2: Convert to fraction form
    6,868.75/10,304.12 = 2,125.28/x
  3. Step 3: Cross multiply
    6,868.75x = 10,304.12 × 2,125.28
  4. Step 4: Simplify right side
    6,868.75x = 21,899,140.15
  5. Step 5: Solve for x
    x = 21,899,140.15/6,868.75
  6. Step 6: Final answer
    x = 3,188.23

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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.