Home / 6,315.80-8,716.59-3,627.85

Finding the Fourth Proportional to 6,315.80, 8,716.59 and 3,627.85

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Solution

The fourth proportional to 6,315.80, 8,716.59 and 3,627.85 is: 5,006.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,315.80 : 8,716.59 = 3,627.85 : x
  2. Step 2: Convert to fraction form
    6,315.80/8,716.59 = 3,627.85/x
  3. Step 3: Cross multiply
    6,315.80x = 8,716.59 × 3,627.85
  4. Step 4: Simplify right side
    6,315.80x = 31,622,481.03
  5. Step 5: Solve for x
    x = 31,622,481.03/6,315.80
  6. Step 6: Final answer
    x = 5,006.88

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1.5x scale

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.