Home / 3,215.44-4,821.72-1,162

Finding the Fourth Proportional to 3,215.44, 4,821.72 and 1,162

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Solution

The fourth proportional to 3,215.44, 4,821.72 and 1,162 is: 1,742.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,215.44 : 4,821.72 = 1,162 : x
  2. Step 2: Convert to fraction form
    3,215.44/4,821.72 = 1,162/x
  3. Step 3: Cross multiply
    3,215.44x = 4,821.72 × 1,162
  4. Step 4: Simplify right side
    3,215.44x = 5,602,838.64
  5. Step 5: Solve for x
    x = 5,602,838.64/3,215.44
  6. Step 6: Final answer
    x = 1,742.48

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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.