Home / 5,451.90-8,180.55-3,113.70

Finding the Fourth Proportional to 5,451.90, 8,180.55 and 3,113.70

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Solution

The fourth proportional to 5,451.90, 8,180.55 and 3,113.70 is: 4,672.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,451.90 : 8,180.55 = 3,113.70 : x
  2. Step 2: Convert to fraction form
    5,451.90/8,180.55 = 3,113.70/x
  3. Step 3: Cross multiply
    5,451.90x = 8,180.55 × 3,113.70
  4. Step 4: Simplify right side
    5,451.90x = 25,471,778.54
  5. Step 5: Solve for x
    x = 25,471,778.54/5,451.90
  6. Step 6: Final answer
    x = 4,672.09

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1.5x scale

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.