Home / 5,191.28-7,786.09-1,492.67

Finding the Fourth Proportional to 5,191.28, 7,786.09 and 1,492.67

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Solution

The fourth proportional to 5,191.28, 7,786.09 and 1,492.67 is: 2,238.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,191.28 : 7,786.09 = 1,492.67 : x
  2. Step 2: Convert to fraction form
    5,191.28/7,786.09 = 1,492.67/x
  3. Step 3: Cross multiply
    5,191.28x = 7,786.09 × 1,492.67
  4. Step 4: Simplify right side
    5,191.28x = 11,622,040.49
  5. Step 5: Solve for x
    x = 11,622,040.49/5,191.28
  6. Step 6: Final answer
    x = 2,238.76

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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.