Home / 4,780.62-7,170.53-1,659.83

Finding the Fourth Proportional to 4,780.62, 7,170.53 and 1,659.83

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Solution

The fourth proportional to 4,780.62, 7,170.53 and 1,659.83 is: 2,489.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,780.62 : 7,170.53 = 1,659.83 : x
  2. Step 2: Convert to fraction form
    4,780.62/7,170.53 = 1,659.83/x
  3. Step 3: Cross multiply
    4,780.62x = 7,170.53 × 1,659.83
  4. Step 4: Simplify right side
    4,780.62x = 11,901,816.66
  5. Step 5: Solve for x
    x = 11,901,816.66/4,780.62
  6. Step 6: Final answer
    x = 2,489.60

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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.