Home / 3,812.04-5,718.78-1,620.72

Finding the Fourth Proportional to 3,812.04, 5,718.78 and 1,620.72

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Solution

The fourth proportional to 3,812.04, 5,718.78 and 1,620.72 is: 2,431.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,812.04 : 5,718.78 = 1,620.72 : x
  2. Step 2: Convert to fraction form
    3,812.04/5,718.78 = 1,620.72/x
  3. Step 3: Cross multiply
    3,812.04x = 5,718.78 × 1,620.72
  4. Step 4: Simplify right side
    3,812.04x = 9,268,541.12
  5. Step 5: Solve for x
    x = 9,268,541.12/3,812.04
  6. Step 6: Final answer
    x = 2,431.39

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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.