Home / 3,816.68-5,725.56-1,219.01

Finding the Fourth Proportional to 3,816.68, 5,725.56 and 1,219.01

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Solution

The fourth proportional to 3,816.68, 5,725.56 and 1,219.01 is: 1,828.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,816.68 : 5,725.56 = 1,219.01 : x
  2. Step 2: Convert to fraction form
    3,816.68/5,725.56 = 1,219.01/x
  3. Step 3: Cross multiply
    3,816.68x = 5,725.56 × 1,219.01
  4. Step 4: Simplify right side
    3,816.68x = 6,979,514.90
  5. Step 5: Solve for x
    x = 6,979,514.90/3,816.68
  6. Step 6: Final answer
    x = 1,828.69

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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.