Home / 1,217.07-1,826.11-486.75

Finding the Fourth Proportional to 1,217.07, 1,826.11 and 486.75

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Solution

The fourth proportional to 1,217.07, 1,826.11 and 486.75 is: 730.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217.07 : 1,826.11 = 486.75 : x
  2. Step 2: Convert to fraction form
    1,217.07/1,826.11 = 486.75/x
  3. Step 3: Cross multiply
    1,217.07x = 1,826.11 × 486.75
  4. Step 4: Simplify right side
    1,217.07x = 888,866.50
  5. Step 5: Solve for x
    x = 888,866.50/1,217.07
  6. Step 6: Final answer
    x = 730.33

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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.