Home / 1,336.19-2,004.47-411.82

Finding the Fourth Proportional to 1,336.19, 2,004.47 and 411.82

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Solution

The fourth proportional to 1,336.19, 2,004.47 and 411.82 is: 617.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,336.19 : 2,004.47 = 411.82 : x
  2. Step 2: Convert to fraction form
    1,336.19/2,004.47 = 411.82/x
  3. Step 3: Cross multiply
    1,336.19x = 2,004.47 × 411.82
  4. Step 4: Simplify right side
    1,336.19x = 825,479.07
  5. Step 5: Solve for x
    x = 825,479.07/1,336.19
  6. Step 6: Final answer
    x = 617.79

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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.