Home / 4,199.88-6,300.75-1,278.41

Finding the Fourth Proportional to 4,199.88, 6,300.75 and 1,278.41

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Solution

The fourth proportional to 4,199.88, 6,300.75 and 1,278.41 is: 1,917.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,199.88 : 6,300.75 = 1,278.41 : x
  2. Step 2: Convert to fraction form
    4,199.88/6,300.75 = 1,278.41/x
  3. Step 3: Cross multiply
    4,199.88x = 6,300.75 × 1,278.41
  4. Step 4: Simplify right side
    4,199.88x = 8,054,938.73
  5. Step 5: Solve for x
    x = 8,054,938.73/4,199.88
  6. Step 6: Final answer
    x = 1,917.90

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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.