Home / 4,120.34-6,180.48-1,811.84

Finding the Fourth Proportional to 4,120.34, 6,180.48 and 1,811.84

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Solution

The fourth proportional to 4,120.34, 6,180.48 and 1,811.84 is: 2,717.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,120.34 : 6,180.48 = 1,811.84 : x
  2. Step 2: Convert to fraction form
    4,120.34/6,180.48 = 1,811.84/x
  3. Step 3: Cross multiply
    4,120.34x = 6,180.48 × 1,811.84
  4. Step 4: Simplify right side
    4,120.34x = 11,198,009.98
  5. Step 5: Solve for x
    x = 11,198,009.98/4,120.34
  6. Step 6: Final answer
    x = 2,717.74

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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.