Home / 5,451.86-8,182.90-2,680.53

Finding the Fourth Proportional to 5,451.86, 8,182.90 and 2,680.53

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Solution

The fourth proportional to 5,451.86, 8,182.90 and 2,680.53 is: 4,023.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,451.86 : 8,182.90 = 2,680.53 : x
  2. Step 2: Convert to fraction form
    5,451.86/8,182.90 = 2,680.53/x
  3. Step 3: Cross multiply
    5,451.86x = 8,182.90 × 2,680.53
  4. Step 4: Simplify right side
    5,451.86x = 21,934,481.60
  5. Step 5: Solve for x
    x = 21,934,481.60/5,451.86
  6. Step 6: Final answer
    x = 4,023.30

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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.