Home / 2,828.70-4,243.04-1,992.32

Finding the Fourth Proportional to 2,828.70, 4,243.04 and 1,992.32

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Solution

The fourth proportional to 2,828.70, 4,243.04 and 1,992.32 is: 2,988.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,828.70 : 4,243.04 = 1,992.32 : x
  2. Step 2: Convert to fraction form
    2,828.70/4,243.04 = 1,992.32/x
  3. Step 3: Cross multiply
    2,828.70x = 4,243.04 × 1,992.32
  4. Step 4: Simplify right side
    2,828.70x = 8,453,494.10
  5. Step 5: Solve for x
    x = 8,453,494.10/2,828.70
  6. Step 6: Final answer
    x = 2,988.47

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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.