Home / 2,291.90-3,163-1,297.24

Finding the Fourth Proportional to 2,291.90, 3,163 and 1,297.24

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Solution

The fourth proportional to 2,291.90, 3,163 and 1,297.24 is: 1,790.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,291.90 : 3,163 = 1,297.24 : x
  2. Step 2: Convert to fraction form
    2,291.90/3,163 = 1,297.24/x
  3. Step 3: Cross multiply
    2,291.90x = 3,163 × 1,297.24
  4. Step 4: Simplify right side
    2,291.90x = 4,103,170.12
  5. Step 5: Solve for x
    x = 4,103,170.12/2,291.90
  6. Step 6: Final answer
    x = 1,790.29

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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.