Home / 5,286.64-7,296.28-3,191.92

Finding the Fourth Proportional to 5,286.64, 7,296.28 and 3,191.92

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Solution

The fourth proportional to 5,286.64, 7,296.28 and 3,191.92 is: 4,405.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,286.64 : 7,296.28 = 3,191.92 : x
  2. Step 2: Convert to fraction form
    5,286.64/7,296.28 = 3,191.92/x
  3. Step 3: Cross multiply
    5,286.64x = 7,296.28 × 3,191.92
  4. Step 4: Simplify right side
    5,286.64x = 23,289,142.06
  5. Step 5: Solve for x
    x = 23,289,142.06/5,286.64
  6. Step 6: Final answer
    x = 4,405.28

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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.