Home / 6,780.38-10,172.25-3,659.04

Finding the Fourth Proportional to 6,780.38, 10,172.25 and 3,659.04

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Solution

The fourth proportional to 6,780.38, 10,172.25 and 3,659.04 is: 5,489.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,780.38 : 10,172.25 = 3,659.04 : x
  2. Step 2: Convert to fraction form
    6,780.38/10,172.25 = 3,659.04/x
  3. Step 3: Cross multiply
    6,780.38x = 10,172.25 × 3,659.04
  4. Step 4: Simplify right side
    6,780.38x = 37,220,669.64
  5. Step 5: Solve for x
    x = 37,220,669.64/6,780.38
  6. Step 6: Final answer
    x = 5,489.47

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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.