Home / 3,815.13-5,721.48-1,217.46

Finding the Fourth Proportional to 3,815.13, 5,721.48 and 1,217.46

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Solution

The fourth proportional to 3,815.13, 5,721.48 and 1,217.46 is: 1,825.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,815.13 : 5,721.48 = 1,217.46 : x
  2. Step 2: Convert to fraction form
    3,815.13/5,721.48 = 1,217.46/x
  3. Step 3: Cross multiply
    3,815.13x = 5,721.48 × 1,217.46
  4. Step 4: Simplify right side
    3,815.13x = 6,965,673.04
  5. Step 5: Solve for x
    x = 6,965,673.04/3,815.13
  6. Step 6: Final answer
    x = 1,825.80

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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.