Home / 3,933.28-5,427.66-2,164.96

Finding the Fourth Proportional to 3,933.28, 5,427.66 and 2,164.96

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Solution

The fourth proportional to 3,933.28, 5,427.66 and 2,164.96 is: 2,987.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,933.28 : 5,427.66 = 2,164.96 : x
  2. Step 2: Convert to fraction form
    3,933.28/5,427.66 = 2,164.96/x
  3. Step 3: Cross multiply
    3,933.28x = 5,427.66 × 2,164.96
  4. Step 4: Simplify right side
    3,933.28x = 11,750,666.79
  5. Step 5: Solve for x
    x = 11,750,666.79/3,933.28
  6. Step 6: Final answer
    x = 2,987.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.