Home / 3,812.48-5,719.62-1,621.28

Finding the Fourth Proportional to 3,812.48, 5,719.62 and 1,621.28

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Solution

The fourth proportional to 3,812.48, 5,719.62 and 1,621.28 is: 2,432.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,812.48 : 5,719.62 = 1,621.28 : x
  2. Step 2: Convert to fraction form
    3,812.48/5,719.62 = 1,621.28/x
  3. Step 3: Cross multiply
    3,812.48x = 5,719.62 × 1,621.28
  4. Step 4: Simplify right side
    3,812.48x = 9,273,105.51
  5. Step 5: Solve for x
    x = 9,273,105.51/3,812.48
  6. Step 6: Final answer
    x = 2,432.30

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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.