Home / 1,217.63-1,826.22-395.66

Finding the Fourth Proportional to 1,217.63, 1,826.22 and 395.66

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Solution

The fourth proportional to 1,217.63, 1,826.22 and 395.66 is: 593.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217.63 : 1,826.22 = 395.66 : x
  2. Step 2: Convert to fraction form
    1,217.63/1,826.22 = 395.66/x
  3. Step 3: Cross multiply
    1,217.63x = 1,826.22 × 395.66
  4. Step 4: Simplify right side
    1,217.63x = 722,562.21
  5. Step 5: Solve for x
    x = 722,562.21/1,217.63
  6. Step 6: Final answer
    x = 593.42

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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.