Home / 2,680.20-4,019.76-1,704.96

Finding the Fourth Proportional to 2,680.20, 4,019.76 and 1,704.96

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Solution

The fourth proportional to 2,680.20, 4,019.76 and 1,704.96 is: 2,557.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,680.20 : 4,019.76 = 1,704.96 : x
  2. Step 2: Convert to fraction form
    2,680.20/4,019.76 = 1,704.96/x
  3. Step 3: Cross multiply
    2,680.20x = 4,019.76 × 1,704.96
  4. Step 4: Simplify right side
    2,680.20x = 6,853,530.01
  5. Step 5: Solve for x
    x = 6,853,530.01/2,680.20
  6. Step 6: Final answer
    x = 2,557.10

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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.