Home / 2,167.44-3,249-1,126.80

Finding the Fourth Proportional to 2,167.44, 3,249 and 1,126.80

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Solution

The fourth proportional to 2,167.44, 3,249 and 1,126.80 is: 1,689.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,167.44 : 3,249 = 1,126.80 : x
  2. Step 2: Convert to fraction form
    2,167.44/3,249 = 1,126.80/x
  3. Step 3: Cross multiply
    2,167.44x = 3,249 × 1,126.80
  4. Step 4: Simplify right side
    2,167.44x = 3,660,973.20
  5. Step 5: Solve for x
    x = 3,660,973.20/2,167.44
  6. Step 6: Final answer
    x = 1,689.08

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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.