Home / 3,168.20-4,339.39-2,988.74

Finding the Fourth Proportional to 3,168.20, 4,339.39 and 2,988.74

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Solution

The fourth proportional to 3,168.20, 4,339.39 and 2,988.74 is: 4,093.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,168.20 : 4,339.39 = 2,988.74 : x
  2. Step 2: Convert to fraction form
    3,168.20/4,339.39 = 2,988.74/x
  3. Step 3: Cross multiply
    3,168.20x = 4,339.39 × 2,988.74
  4. Step 4: Simplify right side
    3,168.20x = 12,969,308.47
  5. Step 5: Solve for x
    x = 12,969,308.47/3,168.20
  6. Step 6: Final answer
    x = 4,093.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.