Home / 3,114.60-4,672.80-2,979.96

Finding the Fourth Proportional to 3,114.60, 4,672.80 and 2,979.96

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Solution

The fourth proportional to 3,114.60, 4,672.80 and 2,979.96 is: 4,470.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,114.60 : 4,672.80 = 2,979.96 : x
  2. Step 2: Convert to fraction form
    3,114.60/4,672.80 = 2,979.96/x
  3. Step 3: Cross multiply
    3,114.60x = 4,672.80 × 2,979.96
  4. Step 4: Simplify right side
    3,114.60x = 13,924,757.09
  5. Step 5: Solve for x
    x = 13,924,757.09/3,114.60
  6. Step 6: Final answer
    x = 4,470.80

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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.