Home / 2,130.42-3,198.60-1,691.94

Finding the Fourth Proportional to 2,130.42, 3,198.60 and 1,691.94

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Solution

The fourth proportional to 2,130.42, 3,198.60 and 1,691.94 is: 2,540.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,130.42 : 3,198.60 = 1,691.94 : x
  2. Step 2: Convert to fraction form
    2,130.42/3,198.60 = 1,691.94/x
  3. Step 3: Cross multiply
    2,130.42x = 3,198.60 × 1,691.94
  4. Step 4: Simplify right side
    2,130.42x = 5,411,839.28
  5. Step 5: Solve for x
    x = 5,411,839.28/2,130.42
  6. Step 6: Final answer
    x = 2,540.27

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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.