Home / 3,310.80-4,568.72-1,818.72

Finding the Fourth Proportional to 3,310.80, 4,568.72 and 1,818.72

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Solution

The fourth proportional to 3,310.80, 4,568.72 and 1,818.72 is: 2,509.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,310.80 : 4,568.72 = 1,818.72 : x
  2. Step 2: Convert to fraction form
    3,310.80/4,568.72 = 1,818.72/x
  3. Step 3: Cross multiply
    3,310.80x = 4,568.72 × 1,818.72
  4. Step 4: Simplify right side
    3,310.80x = 8,309,222.44
  5. Step 5: Solve for x
    x = 8,309,222.44/3,310.80
  6. Step 6: Final answer
    x = 2,509.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.