Home / 2,114.20-3,171.30-1,294.09

Finding the Fourth Proportional to 2,114.20, 3,171.30 and 1,294.09

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Solution

The fourth proportional to 2,114.20, 3,171.30 and 1,294.09 is: 1,941.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,114.20 : 3,171.30 = 1,294.09 : x
  2. Step 2: Convert to fraction form
    2,114.20/3,171.30 = 1,294.09/x
  3. Step 3: Cross multiply
    2,114.20x = 3,171.30 × 1,294.09
  4. Step 4: Simplify right side
    2,114.20x = 4,103,947.62
  5. Step 5: Solve for x
    x = 4,103,947.62/2,114.20
  6. Step 6: Final answer
    x = 1,941.14

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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.