Home / 1,217.67-1,826.39-524.31

Finding the Fourth Proportional to 1,217.67, 1,826.39 and 524.31

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Solution

The fourth proportional to 1,217.67, 1,826.39 and 524.31 is: 786.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217.67 : 1,826.39 = 524.31 : x
  2. Step 2: Convert to fraction form
    1,217.67/1,826.39 = 524.31/x
  3. Step 3: Cross multiply
    1,217.67x = 1,826.39 × 524.31
  4. Step 4: Simplify right side
    1,217.67x = 957,594.54
  5. Step 5: Solve for x
    x = 957,594.54/1,217.67
  6. Step 6: Final answer
    x = 786.42

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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.