Home / 6,520.70-9,785.85-2,627.90

Finding the Fourth Proportional to 6,520.70, 9,785.85 and 2,627.90

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Solution

The fourth proportional to 6,520.70, 9,785.85 and 2,627.90 is: 3,943.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,520.70 : 9,785.85 = 2,627.90 : x
  2. Step 2: Convert to fraction form
    6,520.70/9,785.85 = 2,627.90/x
  3. Step 3: Cross multiply
    6,520.70x = 9,785.85 × 2,627.90
  4. Step 4: Simplify right side
    6,520.70x = 25,716,235.22
  5. Step 5: Solve for x
    x = 25,716,235.22/6,520.70
  6. Step 6: Final answer
    x = 3,943.78

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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.