Home / 3,080.20-4,244.34-2,379.40

Finding the Fourth Proportional to 3,080.20, 4,244.34 and 2,379.40

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Solution

The fourth proportional to 3,080.20, 4,244.34 and 2,379.40 is: 3,278.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,080.20 : 4,244.34 = 2,379.40 : x
  2. Step 2: Convert to fraction form
    3,080.20/4,244.34 = 2,379.40/x
  3. Step 3: Cross multiply
    3,080.20x = 4,244.34 × 2,379.40
  4. Step 4: Simplify right side
    3,080.20x = 10,098,982.60
  5. Step 5: Solve for x
    x = 10,098,982.60/3,080.20
  6. Step 6: Final answer
    x = 3,278.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.