Home / 8,120.52-12,182.05-3,440.54

Finding the Fourth Proportional to 8,120.52, 12,182.05 and 3,440.54

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Solution

The fourth proportional to 8,120.52, 12,182.05 and 3,440.54 is: 5,161.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,120.52 : 12,182.05 = 3,440.54 : x
  2. Step 2: Convert to fraction form
    8,120.52/12,182.05 = 3,440.54/x
  3. Step 3: Cross multiply
    8,120.52x = 12,182.05 × 3,440.54
  4. Step 4: Simplify right side
    8,120.52x = 41,912,830.31
  5. Step 5: Solve for x
    x = 41,912,830.31/8,120.52
  6. Step 6: Final answer
    x = 5,161.35

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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.