Home / 4,129.20-6,194.55-1,355.10

Finding the Fourth Proportional to 4,129.20, 6,194.55 and 1,355.10

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Solution

The fourth proportional to 4,129.20, 6,194.55 and 1,355.10 is: 2,032.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,129.20 : 6,194.55 = 1,355.10 : x
  2. Step 2: Convert to fraction form
    4,129.20/6,194.55 = 1,355.10/x
  3. Step 3: Cross multiply
    4,129.20x = 6,194.55 × 1,355.10
  4. Step 4: Simplify right side
    4,129.20x = 8,394,234.71
  5. Step 5: Solve for x
    x = 8,394,234.71/4,129.20
  6. Step 6: Final answer
    x = 2,032.90

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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.