Home / 1,217.41-1,826.15-395.69

Finding the Fourth Proportional to 1,217.41, 1,826.15 and 395.69

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Solution

The fourth proportional to 1,217.41, 1,826.15 and 395.69 is: 593.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217.41 : 1,826.15 = 395.69 : x
  2. Step 2: Convert to fraction form
    1,217.41/1,826.15 = 395.69/x
  3. Step 3: Cross multiply
    1,217.41x = 1,826.15 × 395.69
  4. Step 4: Simplify right side
    1,217.41x = 722,578.18
  5. Step 5: Solve for x
    x = 722,578.18/1,217.41
  6. Step 6: Final answer
    x = 593.54

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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.