Home / 2,171.21-3,258.23-1,076.49

Finding the Fourth Proportional to 2,171.21, 3,258.23 and 1,076.49

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Solution

The fourth proportional to 2,171.21, 3,258.23 and 1,076.49 is: 1,615.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,171.21 : 3,258.23 = 1,076.49 : x
  2. Step 2: Convert to fraction form
    2,171.21/3,258.23 = 1,076.49/x
  3. Step 3: Cross multiply
    2,171.21x = 3,258.23 × 1,076.49
  4. Step 4: Simplify right side
    2,171.21x = 3,507,446.63
  5. Step 5: Solve for x
    x = 3,507,446.63/2,171.21
  6. Step 6: Final answer
    x = 1,615.44

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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.