Home / 7,858.53-11,789.61-2,311.92

Finding the Fourth Proportional to 7,858.53, 11,789.61 and 2,311.92

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Solution

The fourth proportional to 7,858.53, 11,789.61 and 2,311.92 is: 3,468.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,858.53 : 11,789.61 = 2,311.92 : x
  2. Step 2: Convert to fraction form
    7,858.53/11,789.61 = 2,311.92/x
  3. Step 3: Cross multiply
    7,858.53x = 11,789.61 × 2,311.92
  4. Step 4: Simplify right side
    7,858.53x = 27,256,635.15
  5. Step 5: Solve for x
    x = 27,256,635.15/7,858.53
  6. Step 6: Final answer
    x = 3,468.41

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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.