Home / 2,173.05-3,258.45-712.01

Finding the Fourth Proportional to 2,173.05, 3,258.45 and 712.01

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Solution

The fourth proportional to 2,173.05, 3,258.45 and 712.01 is: 1,067.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,173.05 : 3,258.45 = 712.01 : x
  2. Step 2: Convert to fraction form
    2,173.05/3,258.45 = 712.01/x
  3. Step 3: Cross multiply
    2,173.05x = 3,258.45 × 712.01
  4. Step 4: Simplify right side
    2,173.05x = 2,320,057.13
  5. Step 5: Solve for x
    x = 2,320,057.13/2,173.05
  6. Step 6: Final answer
    x = 1,067.65

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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.