Home / 3,816.43-5,725.25-1,218.76

Finding the Fourth Proportional to 3,816.43, 5,725.25 and 1,218.76

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Solution

The fourth proportional to 3,816.43, 5,725.25 and 1,218.76 is: 1,828.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,816.43 : 5,725.25 = 1,218.76 : x
  2. Step 2: Convert to fraction form
    3,816.43/5,725.25 = 1,218.76/x
  3. Step 3: Cross multiply
    3,816.43x = 5,725.25 × 1,218.76
  4. Step 4: Simplify right side
    3,816.43x = 6,977,705.69
  5. Step 5: Solve for x
    x = 6,977,705.69/3,816.43
  6. Step 6: Final answer
    x = 1,828.33

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1.5x scale

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.