Home / 1,412.26-2,115.65-1,086.03

Finding the Fourth Proportional to 1,412.26, 2,115.65 and 1,086.03

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Solution

The fourth proportional to 1,412.26, 2,115.65 and 1,086.03 is: 1,626.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,412.26 : 2,115.65 = 1,086.03 : x
  2. Step 2: Convert to fraction form
    1,412.26/2,115.65 = 1,086.03/x
  3. Step 3: Cross multiply
    1,412.26x = 2,115.65 × 1,086.03
  4. Step 4: Simplify right side
    1,412.26x = 2,297,662.08
  5. Step 5: Solve for x
    x = 2,297,662.08/1,412.26
  6. Step 6: Final answer
    x = 1,626.94

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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.