Home / 5,381.76-7,427.22-3,286.28

Finding the Fourth Proportional to 5,381.76, 7,427.22 and 3,286.28

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Solution

The fourth proportional to 5,381.76, 7,427.22 and 3,286.28 is: 4,535.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,381.76 : 7,427.22 = 3,286.28 : x
  2. Step 2: Convert to fraction form
    5,381.76/7,427.22 = 3,286.28/x
  3. Step 3: Cross multiply
    5,381.76x = 7,427.22 × 3,286.28
  4. Step 4: Simplify right side
    5,381.76x = 24,407,924.54
  5. Step 5: Solve for x
    x = 24,407,924.54/5,381.76
  6. Step 6: Final answer
    x = 4,535.31

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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.