Home / 2,133.46-3,197.40-1,209.43

Finding the Fourth Proportional to 2,133.46, 3,197.40 and 1,209.43

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Solution

The fourth proportional to 2,133.46, 3,197.40 and 1,209.43 is: 1,812.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,133.46 : 3,197.40 = 1,209.43 : x
  2. Step 2: Convert to fraction form
    2,133.46/3,197.40 = 1,209.43/x
  3. Step 3: Cross multiply
    2,133.46x = 3,197.40 × 1,209.43
  4. Step 4: Simplify right side
    2,133.46x = 3,867,031.48
  5. Step 5: Solve for x
    x = 3,867,031.48/2,133.46
  6. Step 6: Final answer
    x = 1,812.56

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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.