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Finding the Fourth Proportional to 7,846.87, 11,770.31 and 2,917.75

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Solution

The fourth proportional to 7,846.87, 11,770.31 and 2,917.75 is: 4,376.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,846.87 : 11,770.31 = 2,917.75 : x
  2. Step 2: Convert to fraction form
    7,846.87/11,770.31 = 2,917.75/x
  3. Step 3: Cross multiply
    7,846.87x = 11,770.31 × 2,917.75
  4. Step 4: Simplify right side
    7,846.87x = 34,342,822.00
  5. Step 5: Solve for x
    x = 34,342,822.00/7,846.87
  6. Step 6: Final answer
    x = 4,376.63

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Similar ratio
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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.