Home / 2,291.88-3,162.64-1,297.14

Finding the Fourth Proportional to 2,291.88, 3,162.64 and 1,297.14

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Solution

The fourth proportional to 2,291.88, 3,162.64 and 1,297.14 is: 1,789.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,291.88 : 3,162.64 = 1,297.14 : x
  2. Step 2: Convert to fraction form
    2,291.88/3,162.64 = 1,297.14/x
  3. Step 3: Cross multiply
    2,291.88x = 3,162.64 × 1,297.14
  4. Step 4: Simplify right side
    2,291.88x = 4,102,386.85
  5. Step 5: Solve for x
    x = 4,102,386.85/2,291.88
  6. Step 6: Final answer
    x = 1,789.97

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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.