Home / 7,846.40-11,769.60-2,651.84

Finding the Fourth Proportional to 7,846.40, 11,769.60 and 2,651.84

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Solution

The fourth proportional to 7,846.40, 11,769.60 and 2,651.84 is: 3,977.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,846.40 : 11,769.60 = 2,651.84 : x
  2. Step 2: Convert to fraction form
    7,846.40/11,769.60 = 2,651.84/x
  3. Step 3: Cross multiply
    7,846.40x = 11,769.60 × 2,651.84
  4. Step 4: Simplify right side
    7,846.40x = 31,211,096.06
  5. Step 5: Solve for x
    x = 31,211,096.06/7,846.40
  6. Step 6: Final answer
    x = 3,977.76

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Double scale
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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.