Home / 1,446.26-2,169.32-392.12

Finding the Fourth Proportional to 1,446.26, 2,169.32 and 392.12

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Solution

The fourth proportional to 1,446.26, 2,169.32 and 392.12 is: 588.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,446.26 : 2,169.32 = 392.12 : x
  2. Step 2: Convert to fraction form
    1,446.26/2,169.32 = 392.12/x
  3. Step 3: Cross multiply
    1,446.26x = 2,169.32 × 392.12
  4. Step 4: Simplify right side
    1,446.26x = 850,622.91
  5. Step 5: Solve for x
    x = 850,622.91/1,446.26
  6. Step 6: Final answer
    x = 588.15

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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.