Home / 7,820.38-11,723.22-2,622.64

Finding the Fourth Proportional to 7,820.38, 11,723.22 and 2,622.64

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Solution

The fourth proportional to 7,820.38, 11,723.22 and 2,622.64 is: 3,931.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,820.38 : 11,723.22 = 2,622.64 : x
  2. Step 2: Convert to fraction form
    7,820.38/11,723.22 = 2,622.64/x
  3. Step 3: Cross multiply
    7,820.38x = 11,723.22 × 2,622.64
  4. Step 4: Simplify right side
    7,820.38x = 30,745,785.70
  5. Step 5: Solve for x
    x = 30,745,785.70/7,820.38
  6. Step 6: Final answer
    x = 3,931.50

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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.