Home / 4,081.60-6,122.04-2,000.80

Finding the Fourth Proportional to 4,081.60, 6,122.04 and 2,000.80

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Solution

The fourth proportional to 4,081.60, 6,122.04 and 2,000.80 is: 3,001.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,081.60 : 6,122.04 = 2,000.80 : x
  2. Step 2: Convert to fraction form
    4,081.60/6,122.04 = 2,000.80/x
  3. Step 3: Cross multiply
    4,081.60x = 6,122.04 × 2,000.80
  4. Step 4: Simplify right side
    4,081.60x = 12,248,977.63
  5. Step 5: Solve for x
    x = 12,248,977.63/4,081.60
  6. Step 6: Final answer
    x = 3,001.02

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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.