Home / 2,162.12-3,239.94-1,005.44

Finding the Fourth Proportional to 2,162.12, 3,239.94 and 1,005.44

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Solution

The fourth proportional to 2,162.12, 3,239.94 and 1,005.44 is: 1,506.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,162.12 : 3,239.94 = 1,005.44 : x
  2. Step 2: Convert to fraction form
    2,162.12/3,239.94 = 1,005.44/x
  3. Step 3: Cross multiply
    2,162.12x = 3,239.94 × 1,005.44
  4. Step 4: Simplify right side
    2,162.12x = 3,257,565.27
  5. Step 5: Solve for x
    x = 3,257,565.27/2,162.12
  6. Step 6: Final answer
    x = 1,506.65

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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.