Home / 7,785.44-11,678.52-2,591.84

Finding the Fourth Proportional to 7,785.44, 11,678.52 and 2,591.84

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Solution

The fourth proportional to 7,785.44, 11,678.52 and 2,591.84 is: 3,887.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,785.44 : 11,678.52 = 2,591.84 : x
  2. Step 2: Convert to fraction form
    7,785.44/11,678.52 = 2,591.84/x
  3. Step 3: Cross multiply
    7,785.44x = 11,678.52 × 2,591.84
  4. Step 4: Simplify right side
    7,785.44x = 30,268,855.28
  5. Step 5: Solve for x
    x = 30,268,855.28/7,785.44
  6. Step 6: Final answer
    x = 3,887.88

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1.5x scale

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.