Home / 5,190.30-7,786.56-1,492.50

Finding the Fourth Proportional to 5,190.30, 7,786.56 and 1,492.50

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Solution

The fourth proportional to 5,190.30, 7,786.56 and 1,492.50 is: 2,239.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,190.30 : 7,786.56 = 1,492.50 : x
  2. Step 2: Convert to fraction form
    5,190.30/7,786.56 = 1,492.50/x
  3. Step 3: Cross multiply
    5,190.30x = 7,786.56 × 1,492.50
  4. Step 4: Simplify right side
    5,190.30x = 11,621,440.80
  5. Step 5: Solve for x
    x = 11,621,440.80/5,190.30
  6. Step 6: Final answer
    x = 2,239.07

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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.