Home / 3,308.10-4,965.39-2,520.78

Finding the Fourth Proportional to 3,308.10, 4,965.39 and 2,520.78

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Solution

The fourth proportional to 3,308.10, 4,965.39 and 2,520.78 is: 3,783.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,308.10 : 4,965.39 = 2,520.78 : x
  2. Step 2: Convert to fraction form
    3,308.10/4,965.39 = 2,520.78/x
  3. Step 3: Cross multiply
    3,308.10x = 4,965.39 × 2,520.78
  4. Step 4: Simplify right side
    3,308.10x = 12,516,655.80
  5. Step 5: Solve for x
    x = 12,516,655.80/3,308.10
  6. Step 6: Final answer
    x = 3,783.64

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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.