Home / 3,812.08-5,721.36-2,719.12

Finding the Fourth Proportional to 3,812.08, 5,721.36 and 2,719.12

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Solution

The fourth proportional to 3,812.08, 5,721.36 and 2,719.12 is: 4,080.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,812.08 : 5,721.36 = 2,719.12 : x
  2. Step 2: Convert to fraction form
    3,812.08/5,721.36 = 2,719.12/x
  3. Step 3: Cross multiply
    3,812.08x = 5,721.36 × 2,719.12
  4. Step 4: Simplify right side
    3,812.08x = 15,557,064.40
  5. Step 5: Solve for x
    x = 15,557,064.40/3,812.08
  6. Step 6: Final answer
    x = 4,080.99

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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.