Home / 2,133.38-3,197.64-1,310.42

Finding the Fourth Proportional to 2,133.38, 3,197.64 and 1,310.42

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Solution

The fourth proportional to 2,133.38, 3,197.64 and 1,310.42 is: 1,964.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,133.38 : 3,197.64 = 1,310.42 : x
  2. Step 2: Convert to fraction form
    2,133.38/3,197.64 = 1,310.42/x
  3. Step 3: Cross multiply
    2,133.38x = 3,197.64 × 1,310.42
  4. Step 4: Simplify right side
    2,133.38x = 4,190,251.41
  5. Step 5: Solve for x
    x = 4,190,251.41/2,133.38
  6. Step 6: Final answer
    x = 1,964.14

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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.