Home / 3,966.21-5,945.19-1,331.76

Finding the Fourth Proportional to 3,966.21, 5,945.19 and 1,331.76

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Solution

The fourth proportional to 3,966.21, 5,945.19 and 1,331.76 is: 1,996.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,966.21 : 5,945.19 = 1,331.76 : x
  2. Step 2: Convert to fraction form
    3,966.21/5,945.19 = 1,331.76/x
  3. Step 3: Cross multiply
    3,966.21x = 5,945.19 × 1,331.76
  4. Step 4: Simplify right side
    3,966.21x = 7,917,566.23
  5. Step 5: Solve for x
    x = 7,917,566.23/3,966.21
  6. Step 6: Final answer
    x = 1,996.25

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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.