Home / 2,291.92-3,162.79-1,297.17

Finding the Fourth Proportional to 2,291.92, 3,162.79 and 1,297.17

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Solution

The fourth proportional to 2,291.92, 3,162.79 and 1,297.17 is: 1,790.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,291.92 : 3,162.79 = 1,297.17 : x
  2. Step 2: Convert to fraction form
    2,291.92/3,162.79 = 1,297.17/x
  3. Step 3: Cross multiply
    2,291.92x = 3,162.79 × 1,297.17
  4. Step 4: Simplify right side
    2,291.92x = 4,102,676.30
  5. Step 5: Solve for x
    x = 4,102,676.30/2,291.92
  6. Step 6: Final answer
    x = 1,790.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.