Home / 7,714.87-11,572.92-2,785.01

Finding the Fourth Proportional to 7,714.87, 11,572.92 and 2,785.01

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Solution

The fourth proportional to 7,714.87, 11,572.92 and 2,785.01 is: 4,177.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,714.87 : 11,572.92 = 2,785.01 : x
  2. Step 2: Convert to fraction form
    7,714.87/11,572.92 = 2,785.01/x
  3. Step 3: Cross multiply
    7,714.87x = 11,572.92 × 2,785.01
  4. Step 4: Simplify right side
    7,714.87x = 32,230,640.06
  5. Step 5: Solve for x
    x = 32,230,640.06/7,714.87
  6. Step 6: Final answer
    x = 4,177.73

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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.