Home / 4,489.28-6,722.40-2,752.64

Finding the Fourth Proportional to 4,489.28, 6,722.40 and 2,752.64

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Solution

The fourth proportional to 4,489.28, 6,722.40 and 2,752.64 is: 4,121.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,489.28 : 6,722.40 = 2,752.64 : x
  2. Step 2: Convert to fraction form
    4,489.28/6,722.40 = 2,752.64/x
  3. Step 3: Cross multiply
    4,489.28x = 6,722.40 × 2,752.64
  4. Step 4: Simplify right side
    4,489.28x = 18,504,347.14
  5. Step 5: Solve for x
    x = 18,504,347.14/4,489.28
  6. Step 6: Final answer
    x = 4,121.90

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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.