Home / 6,868.80-10,307.42-2,708.08

Finding the Fourth Proportional to 6,868.80, 10,307.42 and 2,708.08

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Solution

The fourth proportional to 6,868.80, 10,307.42 and 2,708.08 is: 4,063.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,868.80 : 10,307.42 = 2,708.08 : x
  2. Step 2: Convert to fraction form
    6,868.80/10,307.42 = 2,708.08/x
  3. Step 3: Cross multiply
    6,868.80x = 10,307.42 × 2,708.08
  4. Step 4: Simplify right side
    6,868.80x = 27,913,317.95
  5. Step 5: Solve for x
    x = 27,913,317.95/6,868.80
  6. Step 6: Final answer
    x = 4,063.78

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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.