Home / 3,179.96-4,387.80-2,002.60

Finding the Fourth Proportional to 3,179.96, 4,387.80 and 2,002.60

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Solution

The fourth proportional to 3,179.96, 4,387.80 and 2,002.60 is: 2,763.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,179.96 : 4,387.80 = 2,002.60 : x
  2. Step 2: Convert to fraction form
    3,179.96/4,387.80 = 2,002.60/x
  3. Step 3: Cross multiply
    3,179.96x = 4,387.80 × 2,002.60
  4. Step 4: Simplify right side
    3,179.96x = 8,787,008.28
  5. Step 5: Solve for x
    x = 8,787,008.28/3,179.96
  6. Step 6: Final answer
    x = 2,763.24

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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.