Home / 3,878.26-5,817.30-1,412.14

Finding the Fourth Proportional to 3,878.26, 5,817.30 and 1,412.14

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Solution

The fourth proportional to 3,878.26, 5,817.30 and 1,412.14 is: 2,118.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,878.26 : 5,817.30 = 1,412.14 : x
  2. Step 2: Convert to fraction form
    3,878.26/5,817.30 = 1,412.14/x
  3. Step 3: Cross multiply
    3,878.26x = 5,817.30 × 1,412.14
  4. Step 4: Simplify right side
    3,878.26x = 8,214,842.02
  5. Step 5: Solve for x
    x = 8,214,842.02/3,878.26
  6. Step 6: Final answer
    x = 2,118.18

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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.