Home / 7,801.84-11,707.26-3,906.28

Finding the Fourth Proportional to 7,801.84, 11,707.26 and 3,906.28

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Solution

The fourth proportional to 7,801.84, 11,707.26 and 3,906.28 is: 5,861.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,801.84 : 11,707.26 = 3,906.28 : x
  2. Step 2: Convert to fraction form
    7,801.84/11,707.26 = 3,906.28/x
  3. Step 3: Cross multiply
    7,801.84x = 11,707.26 × 3,906.28
  4. Step 4: Simplify right side
    7,801.84x = 45,731,835.59
  5. Step 5: Solve for x
    x = 45,731,835.59/7,801.84
  6. Step 6: Final answer
    x = 5,861.67

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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.