Home / 7,492.50-11,231.19-3,112.38

Finding the Fourth Proportional to 7,492.50, 11,231.19 and 3,112.38

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Solution

The fourth proportional to 7,492.50, 11,231.19 and 3,112.38 is: 4,665.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,492.50 : 11,231.19 = 3,112.38 : x
  2. Step 2: Convert to fraction form
    7,492.50/11,231.19 = 3,112.38/x
  3. Step 3: Cross multiply
    7,492.50x = 11,231.19 × 3,112.38
  4. Step 4: Simplify right side
    7,492.50x = 34,955,731.13
  5. Step 5: Solve for x
    x = 34,955,731.13/7,492.50
  6. Step 6: Final answer
    x = 4,665.43

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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.