Home / 2,191.74-3,272-2,114.85

Finding the Fourth Proportional to 2,191.74, 3,272 and 2,114.85

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Solution

The fourth proportional to 2,191.74, 3,272 and 2,114.85 is: 3,157.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,191.74 : 3,272 = 2,114.85 : x
  2. Step 2: Convert to fraction form
    2,191.74/3,272 = 2,114.85/x
  3. Step 3: Cross multiply
    2,191.74x = 3,272 × 2,114.85
  4. Step 4: Simplify right side
    2,191.74x = 6,919,789.20
  5. Step 5: Solve for x
    x = 6,919,789.20/2,191.74
  6. Step 6: Final answer
    x = 3,157.21

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.