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Finding the Fourth Proportional to 7,861.70, 11,794.20 and 2,314.58

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Solution

The fourth proportional to 7,861.70, 11,794.20 and 2,314.58 is: 3,472.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,861.70 : 11,794.20 = 2,314.58 : x
  2. Step 2: Convert to fraction form
    7,861.70/11,794.20 = 2,314.58/x
  3. Step 3: Cross multiply
    7,861.70x = 11,794.20 × 2,314.58
  4. Step 4: Simplify right side
    7,861.70x = 27,298,619.44
  5. Step 5: Solve for x
    x = 27,298,619.44/7,861.70
  6. Step 6: Final answer
    x = 3,472.36

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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.