Home / 1,356.22-2,034.19-920.27

Finding the Fourth Proportional to 1,356.22, 2,034.19 and 920.27

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Solution

The fourth proportional to 1,356.22, 2,034.19 and 920.27 is: 1,380.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,356.22 : 2,034.19 = 920.27 : x
  2. Step 2: Convert to fraction form
    1,356.22/2,034.19 = 920.27/x
  3. Step 3: Cross multiply
    1,356.22x = 2,034.19 × 920.27
  4. Step 4: Simplify right side
    1,356.22x = 1,872,004.03
  5. Step 5: Solve for x
    x = 1,872,004.03/1,356.22
  6. Step 6: Final answer
    x = 1,380.31

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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.