Home / 6,275-8,659.38-3,623.84

Finding the Fourth Proportional to 6,275, 8,659.38 and 3,623.84

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Solution

The fourth proportional to 6,275, 8,659.38 and 3,623.84 is: 5,000.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,275 : 8,659.38 = 3,623.84 : x
  2. Step 2: Convert to fraction form
    6,275/8,659.38 = 3,623.84/x
  3. Step 3: Cross multiply
    6,275x = 8,659.38 × 3,623.84
  4. Step 4: Simplify right side
    6,275x = 31,380,207.62
  5. Step 5: Solve for x
    x = 31,380,207.62/6,275
  6. Step 6: Final answer
    x = 5,000.83

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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.