Home / 4,185.74-6,278.30-1,719.88

Finding the Fourth Proportional to 4,185.74, 6,278.30 and 1,719.88

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Solution

The fourth proportional to 4,185.74, 6,278.30 and 1,719.88 is: 2,579.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,185.74 : 6,278.30 = 1,719.88 : x
  2. Step 2: Convert to fraction form
    4,185.74/6,278.30 = 1,719.88/x
  3. Step 3: Cross multiply
    4,185.74x = 6,278.30 × 1,719.88
  4. Step 4: Simplify right side
    4,185.74x = 10,797,922.60
  5. Step 5: Solve for x
    x = 10,797,922.60/4,185.74
  6. Step 6: Final answer
    x = 2,579.69

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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.