Home / 2,114.60-3,167.85-1,968.80

Finding the Fourth Proportional to 2,114.60, 3,167.85 and 1,968.80

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Solution

The fourth proportional to 2,114.60, 3,167.85 and 1,968.80 is: 2,949.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,114.60 : 3,167.85 = 1,968.80 : x
  2. Step 2: Convert to fraction form
    2,114.60/3,167.85 = 1,968.80/x
  3. Step 3: Cross multiply
    2,114.60x = 3,167.85 × 1,968.80
  4. Step 4: Simplify right side
    2,114.60x = 6,236,863.08
  5. Step 5: Solve for x
    x = 6,236,863.08/2,114.60
  6. Step 6: Final answer
    x = 2,949.43

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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.