Home / 2,171.70-3,255.03-1,076.76

Finding the Fourth Proportional to 2,171.70, 3,255.03 and 1,076.76

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Solution

The fourth proportional to 2,171.70, 3,255.03 and 1,076.76 is: 1,613.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,171.70 : 3,255.03 = 1,076.76 : x
  2. Step 2: Convert to fraction form
    2,171.70/3,255.03 = 1,076.76/x
  3. Step 3: Cross multiply
    2,171.70x = 3,255.03 × 1,076.76
  4. Step 4: Simplify right side
    2,171.70x = 3,504,886.10
  5. Step 5: Solve for x
    x = 3,504,886.10/2,171.70
  6. Step 6: Final answer
    x = 1,613.89

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1.5x scale

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.