Home / 3,955.38-5,933.91-1,322.78

Finding the Fourth Proportional to 3,955.38, 5,933.91 and 1,322.78

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Solution

The fourth proportional to 3,955.38, 5,933.91 and 1,322.78 is: 1,984.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,955.38 : 5,933.91 = 1,322.78 : x
  2. Step 2: Convert to fraction form
    3,955.38/5,933.91 = 1,322.78/x
  3. Step 3: Cross multiply
    3,955.38x = 5,933.91 × 1,322.78
  4. Step 4: Simplify right side
    3,955.38x = 7,849,258.70
  5. Step 5: Solve for x
    x = 7,849,258.70/3,955.38
  6. Step 6: Final answer
    x = 1,984.45

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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.