Home / 3,122.26-4,683.16-1,272.88

Finding the Fourth Proportional to 3,122.26, 4,683.16 and 1,272.88

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Solution

The fourth proportional to 3,122.26, 4,683.16 and 1,272.88 is: 1,909.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,122.26 : 4,683.16 = 1,272.88 : x
  2. Step 2: Convert to fraction form
    3,122.26/4,683.16 = 1,272.88/x
  3. Step 3: Cross multiply
    3,122.26x = 4,683.16 × 1,272.88
  4. Step 4: Simplify right side
    3,122.26x = 5,961,077.29
  5. Step 5: Solve for x
    x = 5,961,077.29/3,122.26
  6. Step 6: Final answer
    x = 1,909.22

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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.