Home / 5,190.27-7,785.36-1,492.49

Finding the Fourth Proportional to 5,190.27, 7,785.36 and 1,492.49

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Solution

The fourth proportional to 5,190.27, 7,785.36 and 1,492.49 is: 2,238.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,190.27 : 7,785.36 = 1,492.49 : x
  2. Step 2: Convert to fraction form
    5,190.27/7,785.36 = 1,492.49/x
  3. Step 3: Cross multiply
    5,190.27x = 7,785.36 × 1,492.49
  4. Step 4: Simplify right side
    5,190.27x = 11,619,571.95
  5. Step 5: Solve for x
    x = 11,619,571.95/5,190.27
  6. Step 6: Final answer
    x = 2,238.72

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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.