Home / 5,440.80-8,161.98-2,519.88

Finding the Fourth Proportional to 5,440.80, 8,161.98 and 2,519.88

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Solution

The fourth proportional to 5,440.80, 8,161.98 and 2,519.88 is: 3,780.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,440.80 : 8,161.98 = 2,519.88 : x
  2. Step 2: Convert to fraction form
    5,440.80/8,161.98 = 2,519.88/x
  3. Step 3: Cross multiply
    5,440.80x = 8,161.98 × 2,519.88
  4. Step 4: Simplify right side
    5,440.80x = 20,567,210.16
  5. Step 5: Solve for x
    x = 20,567,210.16/5,440.80
  6. Step 6: Final answer
    x = 3,780.18

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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.